In Albert's frame of reference, both beams of light travel at the same speed. In my frame of reference, the beam of light directed toward the rear of the train travels at a slower speed. Thus, the answer is same, rear.
How does the relative velocity of the train affect the speed of light beams in different frames of reference?In special relativity, the relative velocity of an object affects the way that light behaves in that frame of reference. When a train is moving relative to a stationary observer, the speed of light appears different in each frame of reference. In the frame of reference of the observer on the train, the speed of light is the same in all directions, regardless of the train's velocity. However, in the frame of reference of the stationary observer, the speed of light is reduced in the direction that the train is moving and increased in the opposite direction. This difference in the observed speed of light is due to the relative velocity of the train affecting the way that light behaves in each frame of reference.
To know more about Relative Velocity visit: https://brainly.com/question/29655726
#SPJ4
7
8
9
10
11
12
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.
Learn more about frequency of sound waves here: https://brainly.com/question/1199084
#SPJ1
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.
To know more about thermal energy visit:
https://brainly.com/question/14506133
#SPJ4
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)
Learn more about height here: https://brainly.com/question/29385533
#SPJ4
question 1 a man weighing 800 n stands at rest on two bathroom scales so that his weight is distributed evenly over both scales. the reading on each scale is 400 n. 200 n. 800 n. none of these
Because his weight is distributed evenly over both scales, the reading on each scale should be 400 N. This is the first option.
Weight, symbolized as W, is a type of force whose acceleration is defined as the acceleration due to gravity. This is why weight is also called the force of gravity (Fg). Weight is not the same as mass. Weight is force, but mass is the measure of the inertia of a body.
The equation for weight is W = mg, where W is weight, m is mass, and g is acceleration due to gravity.
When the man stands, at rest, on two bathroom scales, his weight is then distributed evenly over the scales. This causes the reading on each scale to be half his actual weight.
Learn more about weight at https://brainly.com/question/229459.
#SPJ4
determine the position, velocity, and acceleration of a. (you must provide an answer before moving to the next part.) the position, velocity, and acceleration of a when t
If you know the position function of an object, you may quickly get its velocity function via taking its derivative.
What is the connection between location and velocity?The direction and speed of an object's motion are its velocity. In other terms, velocity is the rate at which an object's position changes. Position includes direction by indicating whether an object is traveling backwards or forwards down a line, sidewards upward and downward in the two or three dimensions, or in any combination of these directions.
Give an illustration of the relationship between acceleration and velocity.If an object's velocity is changing, it is accelerating. As a type of vector, velocity has both direction and magnitude. As a result, any acceleration can be explained these three methods an East to North-East direction shift.
To know more about velocity visit :
https://brainly.com/question/16379705
#SPJ4
Holding your hand at arm's length, you can readily block sunlight from reaching your eyes. Why can you not block sound from reaching your ears this way?
The diffraction of visible light around an obstruction the size of your hand is completely inconsequential since the wavelength of visible light is incredibly small in compared to the proportions of your hand.
What is the SI unit and wavelength?Wavelength is the distance represented by the length of one cycle of a wave. The wavelength symbol is, and the SI unit for wavelength is the metre (m).
What does a wavelength look like?Here are a few examples of wavelengths: The Yellow Light illustration is suitable. All visible light has a wavelength that ranges from 400 to 700 nanometers (nm). The wavelength of yellow light is around 570.nanometers. (nm) Wavelength (nm) (nm).
To know more about wavelength visit:-
https://brainly.com/question/13533093
#SPJ4
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.
To know more about Laplace transform visit:-
brainly.com/question/1597221
#SPJ4
A 0.14 kg ball is dropped from a height and hits the ground at a velocity of -9 m/s (the negative sign shows the downward direction of the ball's motion). After
touching the ground for a short period of time, the ball bounces back at a velocity of +8.5 m/s. What is the impulse on the ball due to the floor?
Answer:
Impulse = Δp = 2.45 kg m/s
Explanation:
Impulse = change in momentum = final momentum - initial momentum
The initial momentum of the ball before hitting the ground is given by:
m * v_i = 0.14 kg * -9 m/s = -1.26 kg m/s
The final momentum of the ball after bouncing back is given by:
m * v_f = 0.14 kg * 8.5 m/s = 1.19 kg m/s
So the change in momentum is:
Δp = v_f - v_i = 1.19 kg m/s - (-1.26 kg m/s) = 2.45 kg m/s
Impulse = Δp = 2.45 kg m/s
Louis is riding in an elevator to the top floor of the Panorama Tower in Miami at a constant speed.
Which diagram represents the forces acting on Louis?
Group of answer choices
B
A
C
D
If an elevator is moving at a constant speed, upward force will b greater than downward force.
Diagram B is the correct answer.
What are the forces acting on elevator at constant speed?The forces acting on an elevator moving upwards at constant speed include the following:
Gravitational force, acting downwards due to the weight of the elevator and its contents.Normal force, acting upwards from the support cable and the floor of the elevator, balancing the gravitational force.Tension force, acting upwards from the support cable, holding the elevator.Frictional force, acting downwards on the bottom surface of the elevator, in the direction opposite to its motion.Assuming the elevator is moving in a vertical direction and is subject to no external forces, the net force on the elevator would be zero.
Learn more about motion of an elevator here: https://brainly.com/question/27238097
#SPJ1
Which of the following is NOT A TRUE STATEMENT about atomic structure?
a, The photon energy for transitions between two energy levels ( e.g. between the ground state and the first excited state) is different for absorption (excitation) and emmission (deexcitation).
b. Atoms do not always remain in their lowest energy state.
c.Transitions between two energy levels can only occur at one specific photon energy.
d. An atom is in an excited state if it has at least one electron at a greater than normal distance from its parent nucleus.
e.An ion is an atom that has either gained or lost electrons.
From the ground state, transitions can take place to energy levels that are either higher or lower.
Which atomic structure claims are accurate?The correct statement regarding the atomic structure among the offered statements is C. Protons and neutrons are present in the nucleus. Reason: In an atom, the number of protons and neutrons in the atom's nucleus are not always equal.
Which of the following statements about atom structure is accurate?The untrue statement is (a) Every atom has a nucleus, which is a neutral center. This is untrue because the nucleus is positively charged because protons, which are positively charged, and neutrons, which are charge-neutral, are present.
To know more about atomic structure visit:-
https://brainly.com/question/13089956
#SPJ4
Exercise 12) The effective velocity Vms of the oxygen molecule in a tank is 625m/s. Calculate the temperature of that gas? Molecular oxygen M = 32g/mol, R = 8,31] / molk
The temperature of oxygen gas is 501.40 K.
What is velocity?The rate at which a body's displacement changes in relation to time is known as its velocity. Velocity is a vector quantity with both magnitude and direction. SI unit of velocity is meter/second.
The effective rms velocity of oxygen is = 625 m/s.
Molecular oxygen M = 32g/mol
Now, effective rms velocity = √(3RT/M)
Hence, we can write that the temperature of oxygen gas is
T = v²M/(3R)
= (625² × 32) ÷ (3 × 8.31 × 10³)
= 501.40 K
Hence, the temperature of that gas is 501.40 K.
Learn more about velocity here:
https://brainly.com/question/18084516
#SPJ1
how do I solve this problem?
The magnitude of vector A is determined as 3.52 m.
What is the value of vector A?
The value of vector A is calculated by applying the principle of vector addition.
R² = A² + B²
where;
R is the resultant vectorA is vector AB is vector BThe resultant vector is given as 2 times vector A.
( 2A)² = A² + ( 6.1 )²
4A² = A² + 37.21
3A² = 37.21
A² = 37.21 / 3
A² = 12.4
A = √ ( 12.4 )
A = 3.52 m
Thus, the value of vector is determined from vector addition of A and B.
Learn more about addition of vectors here: https://brainly.com/question/2927458
#SPJ1
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.
To know more about Length , click the given link below ;
https://brainly.com/question/2217700
#SPJ1
starting from rest at home plate, a baseball player runs to first base 90 feet away. he uniformly accelerates over the first 10 feet to his maximum speed vmax, which is then maintained until he crosses first base. if the overall run is completed in 4 seconds, determine his maximum speed and the time duration of the acceleration.
His maximum speed is 25 ft/sec, and the time duration of the acceleration is 0.8 Sec.
Let, maximum speed is V and acceleration is a (See Picture).
Total time given = 4 secs.
Total time = Time required to accelerate(t) + Time at constant maximum speed(T)
Total time = (t+T)
T+t = 4_______________(1)
Given,
Total distance (D) = 90 ft.
We know,
[tex]V^{2} = 2as[/tex]
⇒ [tex]s = \frac{V^{2} }{2a}[/tex]
Given, s = displacement = 10 ft
⇒ [tex]\frac{V^{2} }{2a} = 10[/tex] ___________________(2)
Now We know,
Speed = final distance / Time at constant maximum speed(T)
⇒ [tex]V=\frac{D-s}{T}[/tex]
⇒ [tex]V = \frac{90-10}{4-t}[/tex]______________[By (1)]
⇒ [tex](4-t) V= 80[/tex]_______________(3)
Also, We know,
[tex]V= u+at[/tex]
But, here u (initial velocity) = 0
∵ [tex]V=at[/tex] ____________________(4)
Now, solving (2), (3) and (4) we get,
[tex](4-t)V+\frac{V^{2} }{2a} = 90[/tex]_______[Adding (2) & (3)]
⇒ [tex]4V-\frac{V^{2} }{a} + \frac{V^{2} }{2a} =90[/tex]________[By (4)]
⇒ [tex]4V-\frac{V^{2} }{2a} =90[/tex]
⇒ [tex]4V-10=90[/tex]_______[By (2)]
⇒ [tex]4V= 100[/tex]
⇒ [tex]V = 25[/tex] ft/sec.
putting the value of V in (2)
We get,
[tex]10=\frac{625}{2a}[/tex]
⇒ [tex]a = \frac{625}{20}[/tex]
⇒ [tex]a = 31.25 ft/sec^{2}[/tex]
Now, putting the values of V and a in (4)
We get,
[tex]t=\frac{V}{a}[/tex]
⇒ [tex]t=\frac{25}{31.25}[/tex]
⇒ [tex]t=0.8 sec[/tex]
Learn more about acceleration
brainly.com/question/12550364
#SPJ4
A runner completes one lap around a circular track with at a time of 252 s252 s at a constant speed of 3.5 m/s3.5 m/s. A - What is the radius, in meters, of the track? B - What was the nunner's centripetal acceleration, in meters per squared second, during the run?
A) The circumference of the track is equal to the distance traveled by the runner in one lap, or C=vt, where v is the velocity and t is the time. So the radius of the track is approximately 70.11 m.
B) The centripetal acceleration is the acceleration towards the center of the circle. So the runner's centripetal acceleration during the run was approximately 0.25 m/s^2.
Centripetal acceleration is a type of acceleration that acts in a direction that is towards the center of a circular path. It is defined as the rate of change of the velocity vector of an object moving in a circular path. The magnitude of centripetal acceleration is given by the equation a = v^2/r, where v is the velocity of the object and r is the radius of the circular path.
Centripetal acceleration is responsible for keeping an object moving in a circular path. Without centripetal acceleration, the object would fly off in a straight line clue to its tangential velocity. For example, when a cor takes o tum, the friction between the tires and the road generates a centripetal force that pulls the car towards the center of the turn, creating centripetal acceleration.
To learn more about Centripetal acceleration visit here: brainly.com/question/14465119
#SPJ4
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.
Tp know more about electrons, visit here:
https://brainly.com/question/1255220
#SPJ4
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:
object b is negatively charged. object a is attracted to b when brought close to each other. check all that is true about object a.
The things that could be true about the object A should that it could be either positive or negative in charge.
Every object having mass has some charge on it, here, the object B is negatively charged and the object A is the attracted by the object B when they are brought close to each other.
By the standard rules, we know, that the opposite charges attract each other, on the other hand a neutral object is always attracted by other charges objects irrespective of the their charge.
So, as it is stated that object B is negatively charged, it is obvious that the object A will be either positive or neutral in nature in terms of charge.
To know more about Charge, visit,
https://brainly.com/question/18102056#:~:text=Expert%2DVerified%20Answer&text=Protons%20have%20a%20positive%20%2B%20charge,for%20the%20protons%20and%20neutrons.
#SPJ4
a satellite orbits the eart in such a way that it spends half of its time crossing the northern hemisphere and the other half od its time corssing the southern hemisphere. the following the information that you are given about the satellite
A satellite that orbits the Earth spends half of its time crossing the northern hemisphere and half of its time crossing the southern hemisphere.
A satellite in this type of orbit is said to have a "drift orbit." This type of orbit is useful for satellites that need to cover a large portion of the Earth's surface for applications such as remote sensing, weather observation, and communication.
The orbit of the satellite is carefully designed such that it crosses the equator at a specific angle, which allows it to spend equal amounts of time over both hemispheres. The altitude of the orbit, the speed of the satellite, and the inclination angle are all important factors that determine the exact shape of the satellite's path around the Earth.
Learn more about satellite brainly.com/question/28103637
#SPJ4
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.
To know more about displacement visit:-
https://brainly.com/question/11934397
#SPJ4
a light bulb is attached to a battery and lights up. which of the following statements is true about the electric field inside the bulb filament
Due to the potential difference and the current flowing through the filament, an electric field will be created. Because of the electric field that the flowing current created, the field must not be zero. So, option C is correct.
A current travels across the filament when the light bulb is connected to a battery and turned on. The voltage differential between the filament's two ends and the resistance of the filament's material combine to produce the electric field inside the filament. The filament glows because of resistance that the current encounters as it passes through it. Near the center of the filament, where the temperature is highest and the material has the maximum resistance, the highest resistance and hence the largest electric field can be found. As the filament reaches its ends, where resistance is lowest, the electric field inside it becomes weaker and less constant.
Learn more about electric field:
brainly.com/question/8971780
#SPJ4
A Light bulb is attached to a battery and lights up. Which of the following statements is true about the electric field inside the bulb filament?
A) The field must be zero because a current is flowing.
B) The field must be zero because any excess charges are on the surface of the filament.
C) The field must be non-zero because the flowing current produces an electric field.
D) The field must be non-zero because no current will flow without an applied field.
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 0.10kg block oscillates back and forth along a straight line on a frictionless horizontal surface. Its displacement from the origin is given by x=(10cm)cos[(10rad/s)t+Ï€/2rad]. (a) What is the oscillation frequency? (b) What is the maximum speed acquired by the block? (c) At what value of x does this occur? (d) What is the magnitude of the maximum acceleration of the block? (e) At what value of x does this occur? (f) What force, applied to the block by the spring, results in the given oscillation?
The frequency of oscillation is given by the formula: f = 1 / T, where T is the period of the oscillation. The maximum speed of the block is 100 cm/s. The maximum speed occurs at the points of maximum displacement. The maximum acceleration is 1000 cm/s². The maximum acceleration occurs at the points of maximum velocity.
a) The frequency of oscillation is given by the formula: f = 1 / T, where T is the period of the oscillation. The period is the time it takes for the block to complete one cycle of its motion. The period is related to the angular frequency (w) by the formula: T = 2 x pi / w. In this case, the angular frequency is 10 rad/s, so the period is T = 2 x pi / 10 = 0.6283s. The frequency is then: f = 1 / T = 1 / 0.6283 = 1.5915 Hz.
b) The maximum speed of the block is given by the formula: v max = A w, where A is the amplitude of the oscillation and w is the angular frequency. In this case, the amplitude is 10 cm, so the maximum speed is: v max = 10 x 10 = 100 cm/s.
c) The maximum speed occurs at the points of maximum displacement, which are at x = +/- A, where A is the amplitude. In this case, x = +/- 10 cm, so the maximum speed occurs at x = +/- 10 cm.
d) The maximum acceleration is given by the formula: a max = w x A. In this case, a max = 1000 cm/s².
e) The maximum acceleration occurs at the points of maximum velocity, which are at A where A is the amplitude. In this case, x = +/- 10 / sqrt(2) = +/- 7.07 cm, so the maximum acceleration occurs at x = +/- 7.07 cm.
f) The force required to produce the given oscillation is given by Hooke's law: F = - k x x, where k is the spring constant and x is the displacement of the block from its equilibrium position. Since the displacement of the block is given by x = (10 cm) cos[(10 rad/s)t + pi/2], we cannot determine the force without knowing the value of the spring constant, k.
Learn more about frequency:
brainly.com/question/5102661
#SPJ4
A resistor is a component that is used in an electric circuit.
(i)
R
V
A
Describe how a student would use the circuit to take the readings necessary to
determine the resistance of resistor R.
A "resistor" is a two-terminal passive electronic current that is employed to limit or control the flow of electric in electrical circuits. Therefore, in the below given way, the value of resistance can be calculated.
What is resistor?A "resistor" is a two-terminal passive electronic current that is employed to limit or control the flow of electric in electrical circuits. It also allows us to provide a variable amount of resistance to an electrical system. Resistors are the most significant and widely utilized components in an electrical circuit.
Electrons cannot pass through insulators, but they may through conductors. Through the following way resistance can be determined.
turn on the circuit
examine both of the ammeter and the voltmeter
To alter the current, modify the variable resistor.
Take new ammeter and voltmeter values and build a voltage-current graph using the equation: voltage current = resistance
Therefore, in the above given way, the value of resistance can be calculated.
To know more about resistor, here:
https://brainly.com/question/28576423
#SPJ1
nozz 12. Figure P14.43 shows a stream of water in steady flow from a kitchen faucet. At the faucet the diameter of the stream is 0.960 cm. The stream fills a 125-cm3 container in 16.3 s. Find the diameter of the stream 13.0 cm below the opening of the faucet.
The diameter of the stream below the opening of the faucet is 1.94 cm.
How to find diameter?The diameter of the stream can be found using the formula for the velocity of steady flow in a cylindrical stream:
v = Q / (πr²)
Where Q is the volume flow rate (volume per time), v is the velocity, and r is the radius of the stream.
By rearranging this equation and using the known values of the volume and time, find the radius of the stream 13.0 cm below the opening of the faucet:
r² = Q / (πv) = (125 cm³) / (π x (13.0 cm)² / 4)
r = √(125 / (π x (13.0 cm)² / 4)) = 0.97 cm
2r = 2 x 0.97cm = 1.94 cm
So the diameter of the stream 13.0 cm below the opening of the faucet would be 1.94 cm.
Learn more on diameter here: https://brainly.com/question/390660
#SPJ1
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.
Learn more about acceleration at https://brainly.com/question/460763
#SPJ1
were the greenhouse effect to disappear, what would happen to earth? view available hint(s)for part a were the greenhouse effect to disappear, what would happen to earth? the thermonuclear reactions that make the sun's energy would come to a stop. earth would be far too cold for human habitation. the movement of tectonic plates would cease. earth would be far too hot for human habitation. sea levels would rise.
Treiber Gases These include ozone, gas, nitrous oxide, and water vapour. Earth would be a frozen wasteland without greenhouse gases.
What is wrong with the greenhouse effect?Since the atmosphere is largely transparent to sunlight, sunshine is also the source of heat on Earth. However, the term "greenhouse effect" is a little misleading because the gravity the Earth as well as its atmosphere function to maintain heat is different from how a greenhouse operates.
What are the three drawbacks of the greenhouse effect? Why?Because of the greenhouse effect, fertile land is destroyed due to soil erosion. Soil erosion brought on by the greenhouse effect lowers crop output. The greenhouse effect causes temperature to rise, which causes global warming. Climate change.
To know more about gravity visit :
https://brainly.com/question/14874038
#SPJ4
Suppose reaction times for recognition of common words like red or green are normally distributed with µ = 220 milliseconds and a standard deviation σ = 32. A psychologist presents a sample of n = 16 subjects with words that include names of colors. However, the color names are printed in a different color ink. That is, the word RED might be printed in blue ink, or GREEN might be printed in red ink. For these words, the sample had a mean reaction time of M = 240. Do these data indicate that presenting color names changes reaction time? Run a hypothesis test and calculate the effect size.
Presenting color names does not appear to significantly affect this sample's reaction time, according to the findings of the hypothesis test and the computation of the effect size.
What are the three different types of hypothesis testing?The most popular null hypothesis test for this sort of statistical relationship is the t-test. In this part, three different t-test types are investigated and used to a range of research techniques: the one-sample t-test, the dependent-samples t-test, and the independent-samples t-test.
The standard error of the mean (SE) as:
SE = σ / √n
SE = 32 / √16 = 16
Next, The z-score as:
z = (M - μ) / SE
z = (240 - 220) / 16 = 1.25
To find the effect size, we can use Cohen's d formula:
d = (M - μ) / σ
d = (240 - 220) / 32 = 0.31
to know more about hypothesis tests here:
brainly.com/question/17099835
#SPJ4
which of the following statements about the visible spectrum of the light emitted by the sun is true?
Correct option is B, The solar spectrum consists of hundreds of dark absorption lines superimposed on a bright continuous spectrum that peaks in the yellow, near the center of the visible region.
Which spectrum does the Sun produce?In addition, our Sun generates light in the ultraviolet, X-ray, and even gamma-ray ranges. The majority of the Sun's radiation, however, is found in the infrared, visible, and ultraviolet portions of the electromagnetic spectrum.
What is the electromagnetic spectrum?The electromagnetic spectrum is made up of radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, gamma rays, and cosmic rays, in decreasing order of frequency and increasing order of wavelength.
The term for the collection of all electromagnetic radiation in the cosmos is the electromagnetic spectrum, or EM spectrum. In the form of electric and magnetic waves, this kind of energy permeates the cosmos and enables the transmission of information and energy.
to know more about spectrum here:
brainly.com/question/3997802
#SPJ4
Complete question -
Which of the following statements about the visible spectrum of the light emitted by the Sun is true?
A. It consists of hundreds of bright emission lines that cluster near the middle of the visible region.
B. It consists of hundreds of dark absorption lines superimposed on a bright continuous spectrum that peaks in the yellow, near the center of the visible region.
C. It consists of a few dark absorption lines on a continuous spectrum that is otherwise independent of wavelength.
D. It consists of a few bright lines widely separated from each other, mostly in the yellow portion of the visible range.
E. It consists of a smooth blackbody curve corresponding to a temperature of 6300 K, with no other prominent absorption or emission features.
what is the efficiency of a pulley if 5000 joules of energy results in 3000 joules of work? please show your calculations.
The efficiency of the pulley system is 60%. This means that 60% of the input energy was transformed into useful work, while the remaining 40% was lost as heat or in other forms of energy transfer.
The efficiency of a system is a measure of how effectively it transforms energy from one form to another and is an important consideration in many engineering applications.
The efficiency of a pulley system can be calculated by dividing the amount of useful work done by the total energy input. In this case, the useful work done is 3000 joules, and the total energy input is 5000 joules. The efficiency is calculated as follows:
Efficiency = (Work done) / (Total energy)
= 3000 Joules / 5000 Joules
= 0.6
= 60%
Therefore, efficiency of a pulley is 60%
Learn more about efficiency here:
https://brainly.com/question/13752440
#SPJ4