The change in electrical potential energy in a lightning bolt when 35C of charge travels from a cloud 2.0 km above the ground in the direction of the field is approximately 7 x 10¹⁰ J.
What is potential energy in electrical systems?
The total potential energy that a unit charge would have if it were positioned everywhere in space might be referred to as electric potential energy.
The following formula can be used to determine the change in electrical potential energy:
ΔU = qΔV
Where
The electrical potential energy change (U) and the charge (Q)
The shift in electric potential is denoted by V.
Charge = 35 C
Initial height: 2.0 kilometers, or 2.0 x 10³ meters
Magnitude of the electric field: 1.0 x 10⁶ N/C
Calculations for the change in electric potential are as follows:
V = Ed, where d is the travel distance and E is the strength of the electric field.
2 x 10³ m * (1.0 x 10⁶N/C) = 2x 10¹⁰V
Lastly, the alteration in electrical potential energy can be determined as follows:
ΔU = qΔV
ΔU = (35 C) * (2.0 x 10⁹ V)
ΔU = 7 x 10¹⁰ J
So, when 35 C of charge moves from a cloud 2.0 km above the ground in the direction of the field, the change in electrical potential energy in a lightning bolt is roughly 7 x 10¹⁰ J.
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Balloon A has charge q, and identical mass balloon B has charge 10q. You hang them from threads near each other. Choose all of the statements with which you agree. Check all that apply. A.) The force that A exerts on B is 10 times the force that B exerts on A. B.) The angle between the thread supporting A and the vertical is less than the angle between the thread supporting B and the vertical. C.) The force that A exerts on B is 1/10 the force that B exerts on A. D.) A and B exert the same magnitude forces on each other.
The required option is A.) The force that A exerts on B is 10 times the force that B exerts on A., C.) The force that A exerts on B is 1/10 the force that B exerts on A.
What is electrostatics force?Non-contact forces, such as electrostatic forces, pull or push on objects without actually making contact with them. When certain materials are rubbed together, a phenomenon known as "charge" can be transferred from one surface to another. Uncharged items are pulled by charged objects, which in turn may push or pull against other charged ones.
According to question:For options
A.) The force that A exerts on B is 10 times the force that B exerts on A.
C.) The force that A exerts on B is 1/10 the force that B exerts on A.
because,
The forces between two charged objects are proportional to the product of the charges and inversely proportional to the square of the distance between the objects. So, the force that A exerts on B is proportional to q * 10q / d^2 and the force that B exerts on A is proportional to 10q * q / d^2, where d is the distance between the two objects. Thus, the force that A exerts on B is 10 times the force that B exerts on A, and the force that A exerts on B is 1/10 the force that B exerts on A.
As for B.) The angle between the thread supporting A and the vertical, and the angle between the thread supporting B and the vertical depend on the mass of the balloons and the tension in the threads, which are not given in the problem. So, it's not possible to determine the relative angles of the threads.
And D.) A and B do not exert the same magnitude forces on each other, as explained above
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for what three times t after the force is applied is the rock a distance of 24.0 m from its position at t
Thus, t = 2 t=2 t=2 s, t = 6 t=6 t=6 s, and t = 9.29 t=9.29 t=9.29 s are the three times the rock is (24 m) removed from the origin.
What do you mean by origin in physics?The coordinate 0 on all axes is defined as the centre of a coordinate axis.
Physics, chemistry, biology, and certain aspects of mathematics were all part of natural philosophy for much of the last two millennia, but during the 17th century Scientific Revolution, these natural sciences developed as distinct research activities in their own right. [c] Physics connects with numerous interdisciplinary fields of study, including biophysics and quantum chemistry, and its borders are not firmly defined. New concepts in physics frequently explain fundamental principles explored by other sciences[3] and provide new research pathways in these and other academic fields such as mathematics and philosophy.
Physics advances frequently enable advances in new technologies.
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using the laplace transform of u(t) for cos3wt, determine the solution for y(t) assuming zero initial conditions
The Laplace transform of u(t) for cos3wt, then [tex]y(t) = \frac{1}{6} [e^{(3it)} + e^{(-3it)}]u(t)[/tex]
What is the function of the Laplace transform?Laplace transform is used to solve differential equations. It is commonly used in many different professions. According to our knowledge, the Laplace transform converts a given LDE (linear differential equation) into an algebraic equation that can be solved using the basic algebraic identities.
Let Y(s) represent y's Laplace transform (t).
Since y(t) = u(t) × cos3wt, we can write:
[tex]Y(s) = U(s) \times [\frac {s}{(s^{2} + 9)}][/tex]
Using the magnitude and phase formula discussed in class, we can express y(t) as:
[tex]y(t) = \frac{1}{6} [e^{(3it)} + e^{(-3it)}]u(t)[/tex]
This transform is useful for analyzing linear, time-invariant systems, and is used in many engineering fields to solve differential equations, such as in electrical, mechanical and control engineering.
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600 J of work are done on a system in a process that decreases the system's thermal energy by 300 J .
How much heat energy is transferred?
2. An open container holds ice of mass 0.565 kg at a temperature of -16.6 ∘C . The mass of the container can be ignored. Heat is supplied to the container at the constant rate of 890 J/minute . The specific heat of ice to is 2100 J/kg⋅K and the heat of fusion for ice is 334×103J/kg.
How much time tmelts passes before the ice starts to melt?
From the time when the heating begins, how much time trise does it take before the temperature begins to rise above 0∘C?
In a process, a system undergoes 600 J of work, which results in a 300 J reduction in thermal energy. Energy cannot generate new matter or destroy existing matter, according to the first law of thermodynamics. Heat is -900J in value.
Thermoenergy: What is it?Thermal energy is the term used to describe the energy present inside a system that determines its temperature. The movement of thermal energy is heat. Thermodynamics is a complete branch of physics that studies how work is done and heat is exchanged between various systems.
What is an illustration of thermal?Thermal energy examples include heaters that warm up a space, solar sun drying wet clothing on a line, ironing shirts, baking cakes, and warming water 1for tea. Thermal energy is released by any material or object that is warm.
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Find the gravitational field on the surface of an alien planet that has an estimated mass of 8.5 x 10^26 kg and radius of 3.5 x 10^4 km. Show all work.
Answer:
Below
Explanation:
Fg = G m1 m2 / r^2 Gravitational constant = 6.6743 x10^-11 m^3 /(kg s^2)
PLug in the given numbers:
Fg = 6.6743 x 10^-11 (1 kg)(8.5x10^26 kg) / (3.5 x10^7 m)^2
= 46.3 m/s^2
Superman throws a boulder of weight 1950N at an adversary on the surface of the earth, where the magnitude of the acceleration due to gravity, g = 9.80m/s2 . What horizontal force must Superman apply to the boulder to give it a horizontal acceleration of 14.6m/s2 ?
The mass of the boulder can be calculated from its weight, which is given as [tex]1950 N[/tex]
How do you define force?Force is a physical quantity that represents an interaction between two objects. It is a vector quantity. Force is expressed in units of Newtons (N).
What does Newton's laws of motion describes?Newton's laws of motion explains how objects move and interact with each other. These laws state that the acceleration of an object is proportional to the force applied to it and inversely proportional to its mass. The laws also state that the sum of forces acting on an object is equal to its mass times its acceleration.
[tex]m=W/g=1950 N/9.8m/s^{2}=198Kg[/tex]
Substituting the mass and the desired acceleration into the equation, we have:
[tex]F=198Kg*14.6m/s^{2}=2889 N[/tex]
Therefore, Superman must apply a horizontal force of [tex]2889 N[/tex] to the boulder to give it a horizontal acceleration of [tex]14.63m/s^{2}[/tex]
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when marie pushes her desk to the right, friction between the floor and the desk acts toward when marie pushes her desk to the right, friction between the floor and the desk acts toward the right. at right angles to her push. the left. none of the above
Marie moves her desk to the right, causing friction between the desk and the floor that moves it to "the left." Thus, option C is correct.
The force of friction prevents movement between two surfaces that are in contact with one another. When Marie pushes her desk to the right, friction acts between the desk and the floor in the opposite direction to her push, which is to the left. The direction of friction is determined by the direction of motion between the two surfaces and the direction of the force that opposes this motion.
Friction acts to slow down or stop the motion of an object, so when Marie pushes the desk to the right, friction acts to the left to counteract her push and slow down the motion of the desk. The magnitude of the friction force depends on the roughness of the two surfaces and the force with which they are pressed together.
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Determine the internal normal force and shear force, and the bending moment in the beam at points C and D. Assume the support at B is a roller. Point C is located just to the right of the 8-kip load.
Using the information provided, I am unable to determine the internal normal force, shear force, and bending moment in the beam at points C and D.
What is force?A force is an effect in physics that may modify the velocity of an item. A force can cause a mass item to change its velocity, or accelerate. Intuitively, force may be characterized as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
Here,
We need to do a structural analysis on a beam to estimate the internal normal force, shear force, and bending moment utilizing methods such as equilibrium equations and the force-moment method. We only have information on the location of the load and the type of support at point B in this situation, thus a thorough analysis is impossible. I am unable to calculate the internal normal force, shear force, and bending moment in the beam at positions C and D using the information supplied. To do a thorough structural analysis, further information on the load, support conditions, and beam geometry is necessary.
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If you wanted to document the apparent retrograde motion of Mars, you would need to measure and record Mars's __________ over a period of __________.
If you wanted to document the apparent retrograde motion of Mars, you'd need to measure and record Mars's position among the constellations over a period of several months.
Earth, about every 26 months, comes up from behind and overtakes Mars. It will look to us as if Mars is moving up and down. The illusion will disappear and once again we will see Mars move in a straight line as we move farther along the curved orbit and see the planet from a different angle. This apparent movement is called retrograde motion.
Mars retrograde lasts about a couple months. When it's happening, Mars usually stays in a particular constellation.
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PLEASE HURRY In the Photosynthesis Lab part of the OMS lesson, you changed the amount of light intensity, temperature, and CO2 level. The the amount of Oxygen released the greater the photosynthesis.
Answer:
YEAH MORE OXYGEN BUBBLES THE MORE PHOTOSYNTHESIS OCCURRING
Explanation:
7
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9
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11 7 points
These two waves have the same amplitude, but different frequencies. If these two waves were sound waves, what would be the difference between
them?
Wave A:
Wave B:
www.
-DO
Wave A will have lower pitch than wave B.
option B is the correct answer.
Which wave will produce a sound of higher pitch?
A wave of higher frequency will produce a sound of higher pitch. The frequency of a wave determines its pitch, with higher frequencies producing higher pitches and lower frequencies producing lower pitches.
In the case of sound waves, the frequency is directly related to the perceived pitch of the sound.
For example, a sound wave with a frequency of 440 Hz is perceived as an "A" note, and a sound wave with a frequency of 880 Hz is perceived as a higher pitched "A" note.
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using conservation of energy, find the maximum height hmax to which the object will rise. express your answer in terms of v and g . you may or may not use all of these quantities.
According to the law of conservation of the energy, the maximum height (h max) to which object will raise: h max = v²/2g
Energy is not created nor destroyed; rather, it just transforms from one form to another, according to the rule of conservation of energy.
The object's highest vertical position during its journey corresponds to its maximum height. Before it reaches the highest point, the item is flying upward; once it reaches that point, it is falling.
The equation:
h max = v²/2g
Where:
h max = the maximum height (m)
v = the velocity (m/s)
g = the acceleration due to gravity (9.8 m/s²)
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calculate the acceleration a of the proton, given the time taken to get from one plate to the other and the separation of the plates.
The acceleration of an object is given by the second law of motion, by:
a = F/m
where a denotes acceleration, F is the net force acting on the object, and m denotes mass of the object.
If the initial velocity, net force, and mass of the proton, you can use the equation a = F/m to calculate the acceleration of the proton as it moves from one plate to the other.
What affects the acceleration of a proton?Protons are charged particles, and their acceleration may also be affected by electric and magnetic fields. The magnitude and direction of these fields can influence the net force acting on the proton and its acceleration.
What is the difference between cation and anion?A cation is defined as an ion with a positive charge. It is formed when an atom loses one or more electrons whereas an anion is an ion with a negative charge. It is formed when an atom gains one or more electrons.
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your bedroom has a rectangular shape and you want to measure it's size. you use a tape that is precise to 0.001m and find that the shortest wall in the room is 3.547m long. the tape however is too short to measure the length of the second wall, so you use a second tape, which is longer but only precise to 0 01m.you measure the second wall to be 4.79m long.Which of the following numbers is the most precise estimate that you can obtain from your measurement for the area of your bedroom.
using the measurement described in part A, which of the following numbers is the most precise estimate for the perimeter of your bedroom?
if your bedroom has a circular shape, and it's diameter measures 6.32m. which of the following numbers would be most precise value for its area.
A) The most precise estimate for the area of the rectangular bedroom is 11.9 m^2, as it's calculated using the two different precision measurements of the two walls.
B) The most precise estimate for the perimeter of the rectangular bedroom is 12.3 m, which is calculated by summing up the two lengths of the walls and multiplying by 2.
C) The most precise estimate for the area of the circular bedroom is 31.7 m^2, which is calculated using the formula πr^2 where r is the radius (diameter/2) which is 6.32m/2 = 3.16m.
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TRUE OR FALSE can the magnitude of the displacement vector be more than the distance traveled?can the magnitude of the displacement vector be more than the distance traveled?yesno
The stated assertion is untrue since the size of the displacement can be greater than or smaller than the object's journey distance.
Is it possible for the displacement vector's magnitude to exceed the travelled distance?It's crucial to remember that the distance travelled need not match the size of the displacement. The total distance travelled will be more than the amount of the displacement between those two points specifically if an object changes direction during its journey.
What connection exists between distance and displacement size?Displacement is the smallest or linear distance between the initial and final places, whereas distance is the length of the path travelled to get there.
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what is the strength of the electric field at the position indicated by the dot in (figure 1)? express your answer in newtons per coulomb.
The equation E = F/q can be used to determine the strength of the electric field (E) at the location denoted by the dot.
What is the Strength of an Electric Field?The force applied per unit of positive charge is referred to as the electric field's strength, or E. It may be shown from the equation E = F/q. Volts per meter (V/M) or Newton per Coulomb are its SI units.
You should be aware that an electric field is strongest where the lines are close and weakest when the lines are far apart.
The technique above can be used to determine the answer even though the whole question is not given.
The equation E = F/q where gives the magnitude of the electric field (E) at the location denoted by the dot: E = F/q where;
F = Force exerted per unit and
q = The electric charge there is positive.
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Information for questions 2,3 , and
4.
You have an oscillating spring with a spring constant of
k=0.69 N/m
. The mass on the end of the spring is
m=0.34 kg
. You may assume the spring is massless. Questions 2, 3, and 4 ask you to show the position, velocity, and acceleration vs time graphs for this spring. Sketching out these graphs by hand may be helpful. U.2points Which of the following graphs most closely matches the displacement vs. time plot for this oscillating spring? Reference part
2.4
on p. 6 for help. Which of the following graphs most closely matches the velocity vs. time plot for this oscillating spring? You may find calculating your maximum velocity from question 2 helpful. Which of the following graphs most closely matches the acceleration vs. time plot for this oscillating spring? You may find calculating your maximum acceleration from question 3 helpful. In questions 2,3 , and 4 you assumed that the spring was massless. This means that the period,
T
, of the spring could be calculated by equation
2,T=2π m
/k
, where
m
is the mass attached to the spring and
k
is the spring constant of the spring. However, one cannot always assume that the spring is massless. If the spring has a mass
M
, which of the following expressions will you use during lab this week to model the mass of the spring?
T=2π k
m+M
T=2π k
m+M/3
T=2π k
m
This oscillating spring's displacement vs. time graph is a sine wave. This oscillating spring's velocity vs. time graph is a cosine wave.This oscillating spring's acceleration vs. time graph is a negative sine wave. If the spring has a mass M, the period may be computed using the formula T=2 (k/m + M/m)^-0.5.
What is oscillation?The process of recurring changes of any quantity or measure about its equilibrium value in time is characterized as oscillation. Oscillation may also be described as a periodic change in a matter's value between two values or near its center value.
Here,
This oscillating spring's displacement vs. time graph is a sine wave that illustrates the displacement of the mass on the end of the spring from its rest position as a function of time.
This oscillating spring's velocity vs. time graph is a cosine wave that displays the velocity of the mass at the end of the spring as a function of time.
This oscillating spring's acceleration vs. time graph is a negative sine wave that illustrates the acceleration of the mass at the end of the spring as a function of time.
If the spring has a mass M, the period may be computed using the formula T=2 (k/m + M/m)^-0.5
M=0
m=0.34 kg
k=0.69 N/m
T=2(0.69/0.34)^-0.5
T=1.404
model used: T=2(k/m)^-0.5
The displacement vs. time graph of this oscillating spring is a sine wave. The velocity vs. time graph of this oscillating spring is a cosine wave. The acceleration vs. time graph of this oscillating spring is a negative sine wave. If the spring has a mass M, the time T=2 (k/m + M/m)^-0.5 may be calculated.
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Two cars (A) and (B) travel in straight line. The distance of (A) from the starting point is given as a function of them be aA(t)=pt+qt2, with p=2.60ms−1 and q=1.20ms−2. The distance of (B) from the starting point is xB(t)=rt2−st3 are r=2.80ms−2 and s=0.20ms−3. Answer the following questions,
At what time (s) are the cars at the same point ?
At approximately 2.81 seconds the cars are at the same point. aA(t) is a linear function and xB(t) is a parabolic function.
Functions aA(t) and xB(t) describes the motion of two cars and both functions give the distance of each car from the starting point as a function of time, t.
aA(t) is a linear function and the components of the functions are constant velocity (p) and acceleration (q).
xB(t) is a parabolic function with components constant acceleration (r) and a component for constant jrk (s).
To find the time when the two cars are at the same location, we must first make the two distance expressions equal and then solve for t.
That is pt + qt² = rt² - st³
Now we have to solve this for t, we get
t = (-p + (p² + 4qr)^1/2) / (2q)
Now add the values for p,q,r,s to solve the equation
t = (-2.6 + (2.6² + 4 × 1.2 × 2.8)^0.5) / (2 × 1.2) = approximately 2.81 seconds.
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gasoline is to be stocked in a bulk tank once at the beginning of each week and then sold to individual customers. the joint density of y1, the proportion of the capacity of the tank that is stocked at the beginning of the week, and y2, the proportion of the capacity sold during the week, is given by f(y1, y2)
Oil or other petroleum liquids are used to create gasoline, a fuel. The majority of gasoline is utilized in car engines. Finished motor is created in refineries and blending plants for petroleum.
Why is gasoline called that?Etymology. The word "gasoline" (commonly abbreviated to "gas") is indeed an American term for motor vehicle fuel. The brand "Cazeline" or "Gazeline," which bears the last name the British publisher, coffee trader, and social activist John Cassell, is claimed to have had some impact on the phrase.
Are autos that run on gasoline?An combustion engine that runs on gasoline is referred to as a "petrol engine" in American English (gasoline). The ability to run on fuels like liquid petroleum gas gas and ethanol mixes can frequently be added to gasoline engines.
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Mechanical advantage is calculated by using the formula
A. Length of Slope (L) / Height of slope (H)
B. Force of Friction/Gravity
C. Normal Force/ Acceleration
D. Height of Slope (H) / Length of Slope (L)
Option A is the correct answer .
What is Length ?
Length is a term used to describe the distance between two points on an object or the dimension of an object along a particular axis. Length is usually measured in units of distance, such as meters, centimeters, inches, or feet .
In physics, length is an important concept used to describe the size of objects, the distance between two points, or the dimensions of a space. In engineering and construction, length is used to design and build structures, such as bridges and buildings, to ensure they are safe and fit for their intended purpose.
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1) In a uniform circular motion, which of the following quantities are constant:
a) speed,
b) instantaneous velocity,
c) tangential velocity,
d) radial acceleration,
e) tangential acceleration
2) Which of the above quantities are zero throughout the motion?
The amount of tangential velocity, or speed, of an item at each point in a uniform circular motion is constant. Every time there is a direction shift, the velocity enters the picture. However, its magnitude never changes.
Constant speed is it uniform?
The body is thought to be moving at a uniform speed if it travels the same distance in the same amount of time. If the body goes in a straight line with changing its direction, the speed is thought to be constant. In all scenarios, there is no acceleration. Recall that homogeneous velocity is a constant velocity as well.
Is uniform acceleration constant?
Summary. Acceleration that remains consistent across time is referred to as uniform acceleration. the relationship between beginning and ultimate velocities, time,
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A 3.96-kg pile of snow is sitting on the ground. A physics teacher
exerts a force upon the pile of snow to both lift it and set it into
motion. The snow leaves the shovel with a speed of 4.61 m/s at a
height of 0.536 m. Determine the work done upon the pile of snow.
Work is the amount of energy transferred to an object by an external force when it is moved over a certain distance by that force.
What is Work done?The work done on an object is the amount of energy transferred to an object through work.
Work completed force displacement along the force's path of action. The units of measurement for work, force, and displacement are joules, newtons, and meters, respectively.
When an object is moved over a distance by an external force, at least a portion of that force must be applied in the direction of the displacement.
Therefore, Work is the amount of energy transferred to an object by an external force when it is moved over a certain distance by that force.
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solve for a in the acceleration equation
To calculate acceleration, you use the equation a =Δv/Δt, where Δv is the change in velocity, and Δt is the time it takes for the change to occur.
In physics, acceleration is the change in velocity in a given unit of time. The acceleration of an object is caused by a force acting on the object, as explained in Newton's second law. The SI unit for acceleration is meters per second squared (m/s). Acceleration is the product of the velocity (m/s) divided by the time (s). So, the resulting formula is a = v/t.
Acceleration and the most basic velocity in acceleration are how fast a car can increase its speed, while velocity looks at how fast a car travels a certain distance.
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suppose an arrow is shot upward on the moon with a velocity of 33 m/s, then its height in meters after seconds is given by . find the average velocity over the given time intervals.
The average velocity over the time intervals (2,3), (2,2.5), (2,2.1), (2,2.01), and (2,2.001) are -53.83 m/s, -1.234 m/s, -19.88 m/s, -49.53 m/s, and -529.3 m/s respectively.
To find the average velocity over a given time interval, we need to find the change in height (displacement) and divide it by the change in time (time interval).
For the time interval (2,3), the displacement is given by h(3) - h(2), which is the difference in height at t = 3 and t = 2. Plugging in the values into the equation for height, we get:
[tex]h(3) - h(2) =[/tex] [tex](53 * 3 - 0.83 * 3^2) - (53 * 2 - 0.83 * 2^2)[/tex]
= 53 - 106.83 = -53.83
The average velocity over the interval (2,3) is given by:
[tex](displacement) / (time interval) = (-53.83) / (3 - 2) = -53.83 m/s[/tex]
For the time interval (2,2.5), the displacement is given by h(2.5) - h(2), which is the difference in height at t = 2.5 and t = 2. Plugging in the values into the equation for height, we get:
[tex]h(2.5) - h(2) = (53 * 2.5 - 0.83 * 2.5^2) - (53 * 2 - 0.83 * 2^2)[/tex]
= 53 - 56.085 = -3.085
The average velocity over the interval (2,2.5) is given by:
[tex](displacement) / (time interval) = (-3.085) / (2.5 - 2) = -1.234 m/s[/tex]
Similarly, for the time intervals (2,2.1), (2,2.01) and (2,2.001), the average velocity can be found using the same method. The smaller the time interval, the closer the average velocity will be to the instantaneous velocity (i.e., the velocity at a specific instant in time) at t = 2.
Complete question:
Suppose an arrow is shot upward on the moon with a velocity of 53 m/s, then its height in meters after t seconds is given by h(t)=53t-0.83t^2. Find the average velocity over the given time intervals. (2,3) and (2,2.5) and (2,2.1) and (2,2.01) and (2,2.001).
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match the rock cycle processes with situations in which they would likely occur. instructions weathering weathering drop zone empty. uplift uplift drop zone empty. solidification solidification drop zone empty. melting melting drop zone empty. deformation deformation drop zone empty. erosion erosion drop zone empty. rock at great depth is exposed to high temperatures. a rock within a mountain range undergoes deformation and movement due to tectonics. a loose piece of rock at the surface is moved away from its source area by ice, water, wind, or gravity. strong forces squeeze a rock and cause it to bend and fold. magma at depth or lava at the surface is hardened as it cools. a rock at the surface is exposed to atmospheric processes.
the methods used to transform rock through one shape to another a rock cycle There are one or more processes that crystals, freezing, drying, erosion, and metamorphism go through.
Where in the rock cycle does weathering take place?At or near the surface, weathering (the method by which rock) and erosion (the process of transferring rock material) reduce rocks to ever-tinier fragments. These more minute rock fragments, including such sand, silt, or mud, can indeed be deposited as sediments, which then harden or lithify to form sedimentary rocks.
Can uplift take place during in the rock cycle?Uplift is a force of transportation that affects rocks in the rock cycle. Sometimes, moving rock fragments from weathered rocks is a part of transportation. However, uplift includes the earth's pressure pushing underground rocks upward.
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when a tennis player hits the tennis ball, he gives impulse to the ball. this means that he exerts large force force on the ball for a very short time. si unit of impulse is newton-seconds. t/f
The given statement regarding impulse is true since he does give impulse to the ball, meaning exerting large force on the ball for a very short time.
Impulse in classical mechanic is the integral of a force F over the time interval t for which it acts. In simpler words, impulse is the effect of force on an object over a (usually very short) period of time. The SI unit of impulse is newton-seconds. The symbol for impulse is "J" or "Imp".
Impulse is also known as the change in momentum. Change in momentum is defined as mass times change in velocity (Δp = m · Δv). Change in velocity is equal to acceleration times change in time (Δv = a · Δt). The product of mass and acceleration is force, so change in momentum is equal to force times change in time (Δp = F · Δt = J).
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The absolute pressure in water at a depth of 9m is read to be 185 kPa. Determine (a) the local atmospheric pressure, and (b) the absolute pressure at a depth of 5 m in a liquid whose specific gravity if 0.85 at the same location. (density of water is 1000 kg/m3)
the absolute pressure is 138.4 kPa at a depth of 5 meters in a liquid with a specific gravity of 0.85 at the same position. (Water has a 1000 kg/m3 density)
What is pressure, and what is the formula for it?That amount of force delivered perpendicularly to an object's surface in relation to its area is known as pressure. Pressure is a force-area relationship; pressure = force area. Pascal is the SI pressure measurement (pa).
How is pressure determined?The formula for calculating pressure is P = F / A, or force for unit of the surface area. The SI unit in measuring pressure is the pascal, and the sign for pressure in physical science is p. (symbol: Pa). One Newton per sq.m of force exerted perpendicularly on a surface is equal to one pascal.
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Caleb opens a soda can by pulling on the tab. The picture shows Caleb opening the soda can. The
tab is a simple machine. What is the mechanical advantage of the tab?
Answer:
leverage to open it
Explanation:
The mechanical advantage of the tab of a soda can is that, it acts as a second class lever.
What is meant by a lever ?Lever is defined as a simple machine that increases the force. Lever is used to lift loads or weight by reducing the work.
Here,
Caleb opened a soda can by puling the tab of the can. The tab of the soda can here acts as a simple machine to open it.
The tab of the soda can is used to open the can such that it makes the task super easy. The tab of the can is an application of a second class lever.
Second class lever is the type of lever in which the fulcrum is located at one end and the load is in the middle such that the effort is applied in the other end. In the tab, the force is applied at one end upwards and the other end of the tab opens downwards to the can and thus it is opened. This is the working of the tab of a soda can.
Hence,
The mechanical advantage of the tab of a soda can is that, it acts as a second class lever.
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Air drag will cause a Change in acceleration
Answer:Now it gets complicated. There is an initial acceleration, therefore there is an increase in speed. With an increase in speed comes an increase in drag and a decrease in net force. This decrease in net force reduces acceleration.
Explanation:
When drag is equal to weight, there is no net external force on the object, and the acceleration will become equal to zero.
hope this helped :)! --Middle schooler
a sphere and a cylinder of equal mass and radius are simultaneously released from rest on the same inclined plane. they then roll down the plane without slipping. choose a correct answer: select all that apply
The correct answer is B. The cylinder reaches the bottom first because it picks up more rotational energy.
What is moment of inertia?The mass of a body is what causes inertia. The inertia of a body increases with its bulk. For instance, a lighter stone can be thrown farther than a smaller one. The heavier object resists change more because it has more mass, or more inertia.
According to question:When a sphere and a cylinder of equal mass and radius roll down an inclined plane, the cylinder will pick up more rotational energy due to its larger moment of inertia.
A sphere has a moment of inertia equal to 2/5 of its mass times the square of its radius, while a cylinder has a moment of inertia equal to 1/2 of its mass times the square of its radius.
This means that the cylinder has a larger moment of inertia and will therefore pick up more rotational energy as it rolls down the incline. As a result, it will reach the bottom of the incline before the sphere.
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