The direction of the acceleration of both cars is westwards, which means that their velocity in the westward direction will increase over time.
Based on the information that a red car has an instantaneous acceleration of 16 m/s^2 westwards and
a blue car has an instantaneous acceleration of 8 m/s^2 westwards,
the following statements can be made about their motion:
The red car is accelerating at a faster rate than the blue car in the westward direction.
This means that the red car is increasing its velocity in the westward direction at a faster rate than the blue car.
The westward acceleration of the red car is double that of the blue car. This means that if both cars continue to accelerate at these rates,
the red car's velocity in the westward direction will increase at twice the rate of the blue car's velocity.
Statements are based solely on the acceleration values, and other factors such as initial velocity, distance traveled, or time elapsed could also affect the motion of the cars.
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two people fishing from rowboats on a lake are 100 m apart and have hooked their lines into the same sunken log. the first has 85 m of line out, and the second has 68 m of line out. assuming that the lines both lie in the same vertical plane, meet at a point (on the log), and are taut, how deep is the sunken log?
The sunken log would have to be at least 17 meters deep for the two lines to meet at the same point.
This is because the first line has 85 meters of line out, so the log would need to be at least 85 meters below the surface for the line to be taut. The second line has 68 meters of line out, so the log would need to be at least 68 meters below the surface for it to be taut. Therefore, the sunken log must be at least 17 meters below the surface for the two lines to meet at the same point.
Depth is the measurement of how far an object is from front to back. It is measured in three dimensions, and can refer to a physical object or a virtual environment. For a physical object, depth is measured from the front of the object to the farthest point behind it. For a virtual environment, depth can refer to the distance from the camera to the farthest objects in the scene.
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the intensity of light at a depth of meters below the surface of a lake satisfies the differential equation (a) at what depth, in meters, is the intensity of light half of , where equals the intensity of light at the surface (where )? meters (b) what is the intensity of light at a depth of 10 meters (in terms of )? intensity
In meters, the intensity of light at the surface is 0.573 m.
Where does intensity come from?A measure that is produced from a random measure is known as an intensity measure in probability theory. The intensity measure, which is not random and is defined as the random measure's expected value for a set, corresponds to the average volume that the random measure gives a set.
a. We first solve the differential equation to obtain the expression for I before determining the depth, x.
dI/dx = (-1.21)I
dI = (-1.21)Idx
dI/I = -1.21dx
Integrating both sides, we have
∫dI/I = ∫-1.21dx
㏑I = -1.21x + C
I = exp(-1.21x + C)
I = exp(-1.21x)exp(C) Let exp(C) = A
I =Aexp(-1.21x)
when x = 0, I = L. When these are substituted into the equation, we have
L = Aexp(-1.21 × 0)
L = Aexp(0)
L = A
So, I = Lexp(-1.21x)
When I = L/2, we want to determine x.
So, L/2 = Lexp(-1.21x)
1/2 = exp(-1.21x)
-1.21x= ㏑(1/2)
-1.21x= -㏑2
x = -㏑2/-1.21
x = 0.693/1.21
x = 0.573 m
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a helicopter blade spins at exactly 120 revolutions per minute. its tip is 6.00 m from the center of rotation. (a) calculate the average speed (in m/s) of the blade tip in the helicopter's frame of reference. 75.4 correct: your answer is correct. seenkey 75.4 m/s (b) what is its average velocity (in m/s) over one revolution?
The average speed of the blade tip in the helicopter's frame of reference is 75.4 m/s The average velocity over one revolution is 360 m/s, as the blade tip covers a distance of 6 m over one revolution.
The average speed is the total distance traveled by an object in a particular time interval. It is a scalar quantity, meaning it does not include any direction information. To calculate the average speed, you need to divide the total distance traveled by the total time it took to travel that distance. The unit for average speed is typically meters per second (m/s) and it is an important measure for understanding the motion of objects.
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a cap of 500 kvar is placed in parallel with an indicator of 400 kvar. calculate the apperat power g
A 400 kvar indication is set parallel to a 500 kvar cap. the apparent power The circuit's apparent power is 6400 kVA.
The apparent power, S, in a electrical circuit can be calculated using the formula
S = √(P^2 + Q^2),
where P is the real power and Q is the reactive power.
In this case, we are given that the cap has a reactive power of 500 kvar and the indicator has a reactive power of 400 kvar.
The apparent power can be calculated as follows:
S = √((500 kvar)^2 + (400 kvar)^2)
S = √(25000000 + 16000000) kVA
S = √41000000 kVA
S = 6400 kVA
So the apparent power in this circuit is 6400 kVA.
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a football is thrown upward at some angle above the horizontal. if we neglect air friction, then we can conclude that the acceleration vector of the football is
if we neglect air friction, then we can conclude that the acceleration vector of the football is not accelerating horizontally.
The acceleration vector of the football, neglecting air friction, is directed downward with a constant magnitude of 9.8 m/s^2, which is equal to the acceleration due to gravity. This is because the only force acting on the football is gravity, which pulls it toward the center of the earth, and the direction of the acceleration is equal to the direction of the gravitational force. So, the acceleration vector of the football is given by:
a = (0, -9.8 m/s^2)
where the x-component is 0, because the football is not accelerating horizontally, and the y-component is -9.8 m/s^2 because the acceleration is directed downward.
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We are studying the properties of a 10 L vessel of an ideal gas at 300 K and 10 atm of pressure inside. We can fix the volume or the pressure of the vessel as we like. if we decrease the temperature to 200 k at constant pressure, what would the new volume be?
the characteristics of the a 10 L ideal gas vessel filled with it at a pressure of 10 atm and temperature of 300 K. any desired changes in the vessel's volume or pressure. 30L of liquid will be produced at constant pressure when the temperature is 200 k.
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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how does the use of reference points help you to overcome the optical illusions created by the blind zone, the body of the vehicle blocking your view of the ground?
By providing a point of comparison to evaluate the location and movement of objects, reference points assist counteract optical illusions caused by the blind spot or the body of the vehicle limiting the view of the ground.
What is optics?Optics is the field of physics that examines light's behavior and qualities, including its interactions with matter and the design of equipment that use or detect it. The behavior of visible, ultraviolet, and infrared light is often described by optics.
Here,
You can precisely evaluate the location of an item relative to your vehicle and other things around it by utilizing these reference points, which helps decrease the impact of a blind spot or car body obscuring your vision. This enables you to make better driving judgments and prevent any crashes or dangers.
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a lunar eclipse can be seengroup of answer choicesonly by the observers in a 500 km wide path of totality.at the same time each year.by all observers on the nighttime side of earth.by all observers on the daylight side of earth.only at midnight.
"A lunar eclipse can be seen by all observers on the night-time side of earth."
Unlike solar eclipses, which require special glasses to observe and may only be seen briefly in a very narrow zone, a total lunar eclipse can persist for more than one hour and be viewed by anybody on Earth's night side.
The light appears reddish due to the Rayleigh scattering of blue light, the same reason sunrise and sunsets are more orange than during the day. A lunar eclipse can be seen from anyplace on the night side of Earth, unlike a solar eclipse, which can only be seen from a limited portion of the globe.
Lunar eclipses are technically visible from the entire night side of Earth, but during a penumbral eclipse, the dimming of the Moon's illumination is slight.
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when we arrange a set of measurements in groups in order of magnitude and indicate the frequency associated with each group, we have constructed a
When we arrange a set of measurements in groups in order of magnitude and indicate the frequency associated with each group, we have constructed a histogram.
A histogram is a graphical representation of data that displays the distribution of a set of continuous or discrete measurements by grouping the measurements into ranges or "bins". The bins are arranged in order of magnitude on the x-axis and the frequency of measurements in each bin is indicated by the height of a bar on the y-axis. The resulting graph provides a visual representation of the distribution of the data, showing the shape of the data and allowing for quick assessment of the frequency of different values.
A histogram provides useful information about the data, including the central tendency (e.g. mean, median), spread (e.g. range, standard deviation), and skewness of the data. It can also be used to identify outliers or unusual observations in the data and to compare the distributions of two or more sets of data.
In constructing a histogram, it's important to choose an appropriate number of bins and bin width to ensure that the histogram accurately represents the distribution of the data. A histogram with too few bins may not provide sufficient detail about the data, while a histogram with too many bins may result in a cluttered or misleading graph. The choice of bin width can be informed by statistical techniques such as the Scott's rule or the Freedman-Diaconis rule.
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A supply plane needs to drop a package of food to scientists working on a glacier in Greenland. The plane flies 130 m above the glacier at a speed of 160 m/s. How far short of the target should it drop the package?
The plane flies at speed of 160m/s should drop the package when it reaches at a distance of 824m.
How does Newton's second law relate to gravity?A dropped object travels quickly in the direction of the earth's center. Newton's second law states that the net force applied on an object determines its acceleration. If air resistance is small, the gravitational force, which is also known as an object's weight (w), acts as the net force on any falling object.
What other name does gravity's acceleration go by?Free-fall acceleration seems to be another name for gravitational acceleration. Gravitational fields established by masses pull other masses approach them.
[tex]h = ut + 1/2 gt^2 ; u=0130 = 1/2 \times 9.8 \times t^2t= 5.15sec[/tex]
The packet travel with the time period of 5.15sec
The distance = v x t
160m/s x 5.15s = 824m
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how much volume does 3 moles of gas occupy at standard temperature and pressure?
One moles of any gases will take up 22.4 liters of space at STP. The volume will double when the moles of gas are doubled. Therefore, at STP, three molecules of any gas have a capacity of 67.2 liters.
How do you calculate volume at standard pressure and temperature?The molar volume (Vm) is the greater burden by one mole of either a chemical element or chemical compound at normal temperature and pressure (STP). You may figure it out by dividing the mass density () by the molar mass (M).
How are gas volume and pressure determined?These equations are variations of the ideal gas, PV = nRT, in which P is the gas's pressure, V is its volumes, n is the gas's number of moles, T is the gas' kelvin temperatures, and R is indeed the ideal (national) gas constant.
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most of the mass in the milky way galaxy is located
at a distance of 54.2 cm from a very long (essentially infinite) uniform line of charge, the electric field strength is 1,568 n/c. at what distance (in cm) from the line will the field strength be equal to 627 n/c?
The electric field strength at a distance of 34.8 cm from the line charge.
The electric field strength (E) at a point is directly proportional to the charge density (λ) of the line charge and inversely proportional to the square of the distance (d) from the line. That means:
E ∝ λ / d^2
So, we can write:
[tex]\frac{E1}{E2} =\frac{ \lambda}{d1^2} * \frac{ d2^2}{\lambda}[/tex] where,
E1 is the electric field strength at d1 E2 is the electric field strength at d2.By substituting the given values, we get:
1,568 n/c / 627 n/c = λ / 54.2^2 cm^2 / λ / d2^2
And solving for d2, we get:
d2 = [tex]\sqrt{(54.2^2 cm^2 * 627 n/c / 1,568 n/c)}[/tex]
= 34.8 cm
So, the electric field strength at a distance of 34.8 cm from the line charge is equal to 627 n/c.
Key points:
The electric field strength at a point is directly proportional to the charge density of the line charge and inversely proportional to the square of the distance from the line.We can use the formula E ∝ λ / d^2 to calculate the electric field strength at a given distance from the line charge.The electric field strength at a distance of 34.8 cm from the line charge is equal to 627 n/c.Learn more about electric field strength here:
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the best long jump is measured as 8.00m. the jumper took off at an angle of 39. what was the initial speed of the jumper
So the jumper's beginning speed was 12.47 m/s when the best long jump was measured at 8.00m.
What is speed?The pace at which an item travels or works is referred to as its speed, which is often defined in terms of distance per unit of time such as meters per second or miles per hour.
Here,
The initial speed of the jumper can be calculated using the following kinematic equation:
d = vit + 0.5a*t²
where d is the horizontal distance (8.00m), vi is the initial velocity, t is the time in the air, and a is the acceleration due to gravity (9.8 m/s^2). The time in the air can be found using the vertical displacement, which is given by:
h = visin(θ)t - 0.5at²
where h is the vertical height (0), θ is the launch angle (39°), and t is the time in the air. Solving for t in both equations and substituting into one of them, we can find the initial velocity:
vi = sqrt(2ad/cos²(θ)) = sqrt(29.88.00/cos²(39)) = 12.47 m/s.
So the initial speed of the jumper was 12.47 m/s when the best long jump is measured as 8.00m.
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the kinetic energy of everyday-sized objects and the potential energy that results from gravity are both forms of blank energy. multiple choice question. radiant nuclear electric mechanical
The kinetic energy of everyday-sized objects and the potential energy that results from gravity are both forms of mechanical energy.
Kinetic energy and potential energy are the two types of mechanical energy.
The quantity of potential energy a thing possesses and the amount of kinetic energy it is capable of producing determine mechanical conversion.
Regardless of potential, creating power requires energy from motion, without which many energy-generating sources would not function.
Mechanical energy is the combination of stored (potential energy) and moving (kinetic energy), and it depends on the position and velocity of an object. In other words, mechanical energy is produced when an object's kinetic and potential energy are combined.
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determine the rate of heat loss from that person by radiation in a large room having walls at a temperature of 300 k. you must provide an answer before moving to the next part. the rate of heat loss from the person in the room at 300k is
The rate of heat loss from the person in the room at 300k is approximately 140.82 Watts. As the equation for heat loss by radiation calculates the amount of energy that is being radiated from the surface of a body to its surroundings.
The rate of heat loss from a person by radiation can be calculated using the formula:
Q = σ x ε x A x (T_s^4 - T_w^4)
where:
Q = rate of heat loss (W)
σ = Stefan-Boltzmann constant (5.67 x 10^-8 W m^-2 K^-4)
ε = emissivity (0.5)
A = exposed surface area (1.7 m^2)
T_s = surface temperature (32 °C, or 305 K)
T_w = temperature of surrounding walls (300 K)
Plugging in the values, we get:
Q = 5.67 x 10^-8 * 0.5 * 1.7 * (305^4 - 300^4)
Q = 140.82 W
So, the rate of heat loss from the person by radiation is approximately 140.82 Watts.
In the example given, the person has a relatively small exposed surface area and a relatively low emissivity, so they are not radiating a large amount of energy. However, the room has walls that are at a higher temperature than the person's skin, which will result in a significant amount of heat loss.
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blood is accelerated from rest to 30.0 cm/s in a distance of 1.80cm by the left ventricle of the heart. how long does the acceleration take, in seconds? (as in all questions like this, it will be useful to list the quantities you know, identify what you are trying to find, then figure out a plan to connect them.)
The acceleration of blood from rest to 30.0 cm/s in a distance of 1.80 cm by the left ventricle of the heart takes 1.79 seconds.
The time it takes for the acceleration to occur can be calculated using the equation of motion:
v = at, where v is the final velocity, a is the acceleration, and t is the time.
We know the final velocity (v = 30.0 cm/s) and the acceleration (a = Δv/Δt, where Δv is the change in velocity and Δt is the change in time), but we need to calculate the acceleration to find the time.
We can use the relationship between acceleration and the change in position:
a = Δv/Δx, where Δx is the change in position.
Substituting Δv = v - 0 (since the blood was at rest) and Δx = 1.80 cm, we get a = v/Δx = 30.0 cm/s / 1.80 cm = 16.67 cm/s^2.
Now we can use the equation v = at to find the time:
t = v/a = 30.0 cm/s / 16.67 cm/s^2 = 1.79 s.
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at a track and field meet, the best long jump is measured as 8.20 m. the jumper took off at an angle of 39.0 to the horizontal. what was the initial speed of the jumper
The initial speed of the jumper can be calculated using the formula for horizontal velocity, Vx = V0 × cos(θ), where θ is the angle of take-off and V0 is the initial speed. The initial speed of the jumper was approximately 9.988 m/s.
What is initial speed?When you hear the term initial velocity, your first thought is that it refers to the speed at which an object was traveling when it initially started moving. Normally, we make this error, but in truth, what matters is the object's velocity at a certain point in time (which can be assumed) before it was affected by acceleration after that point in time.
When gravity first exerts a force on an object, its initial velocity defines how quickly the object moves. The final velocity, on the other hand, is a vector number that gauges a moving body's speed and direction after it has reached its maximum acceleration.
v = u + at
s = ut + 1/2 a
= 2as
Given that the angle of take-off is 39.0 degrees, we can use the following calculation:
Vx = V0 × cos(39)
V0 = Vx / cos(39) = 8.20 / cos(39)
cos(39) is approximately 0.825. Therefore:
V0 = 8.20 / 0.825 = 9.988 m/s
So, the initial speed of the jumper was approximately 9.988 m/s.
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consider a medium in which the heat conduction equation is given in its simplest form as . the heat transfer is .
Heat transport is transitory in this medium. This medium's heat transport is two-dimensional. The equation does not state if heat is generated in the medium. The equation does not define whether the medium's thermal conductivity is constant or changing.
What is thermal conductivity?The rate at which heat is transported by conduction through a unit cross-section area of a material when a temperature gradient exits perpendicular to the area is described as thermal conductivity. The attribute of thermal conductivity defines how easily heat passes through a substance. The higher a substance's thermal conductivity, the better it transmits heat.
Here,
The heat transfer in this medium is transient, because the temperature is a function of time (dT/dt is present in the equation). The heat transfer in this medium is two-dimensional, because temperature depends on two spatial dimensions (x and y). The equation does not specify whether there is heat generation in the medium. The equation does not specify whether the thermal conductivity of the medium is constant or variable.
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Complete question:
2–25 Consider a medium in which the heat conduction equation is given in its simplest form as:
d^2T/dx^2 + d^2T/dy^2 = 1/a dT/dt
(a) Is heat transfer steady or transient?
(b) Is heat transfer one-, two-, or three-dimensional?
(c) Is there heat generation in the medium?
(d) Is the thermal conductivity of the medium constant or variable?
reset the simulation (circular orange button) and check the force and speed boxes. apply a force of 50 n to the right for about 5 seconds (the timing is not critical) and then make the applied force zero. let the simulation keep running. describe the motion of the box on the skateboard. what happens on the speedometer?
When a force of 50 N is applied to the right for 5 seconds, the box will begin to move to the right with an increasing speed.
The speedometer will show the increasing speed of the box. After the applied force is made zero, the box will continue to move to the right due to its acquired momentum but its speed will begin to decrease as it loses energy due to friction and other resistive forces.
A speedometer is a device that measures the speed of a vehicle. It is typically mounted on the dashboard of a car and displays the speed in either miles per hour (mph) or kilometers per hour (km/h). The speedometer is linked to the car's transmission and is powered by either a cable or an electronic signal. It works by measuring the number of rotations of the wheels, which is then translated into a speed reading on the gauge.
The speedometer is an important safety feature as it helps drivers stay within the speed limit and drive safely. It also helps drivers monitor their speed to avoid receiving a speeding ticket or getting into an accident. A speedometer is a critical component of any vehicle and should be checked regularly to ensure that it is functioning properly.
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the quantity called mass density is the mass per unit volume of a substance. what are the mass densities in basic si units of the following objects? a. a 215 cm 3 solid with a mass of 0.0179 kg. b. 95 cm 3 of a liquid with a mass of 77 g
a. The mass density of the solid object can be calculated as follows:
mass density = mass / volume
mass density = 0.0179 kg / (215 cm^3)
mass density = 0.0179 kg / 0.0215 m^3
mass density = 8.27 kg/m^3
b. The mass density of the liquid can be calculated as follows:
mass density = mass / volume
mass density = 77 g / (95 cm^3)
mass density = 77 g / 0.0095 m^3
mass density = 8105 kg/m^3
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what is the magnitude of the force exerted on the block with mass 4 kg by the block with mass 6 kg? select all that apply
The magnitude of the force exerted on the block of mass 4kg by the block of mass 6kg is 8 Newtons.
Mass times acceleration, or F= m x a, equals force. This means that in order to move an object at the same speed as an object with smaller mass, a stronger force is required. The heavier block of mass 6kg here is being pushed by a horizontal force of 20 N. As both the blocks are in contact with each other, this means that both move with the same acceleration. Acceleration in terms of the above relation:
a = F/m
a = 20/ 6+4 = 2 [tex]m/s^{2}[/tex]
Now, we can calculate the force exerted by the 6kg block on 4kg block.
F = m × a
F = 4 × 2 = 8 N.
According to Newton's second law of motion, when a force is applied to an object, the object accelerates (i.e. rate of change of velocity). When a force is applied to a still object, the object experiences acceleration and begins to move in the direction of the force.
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Complete question is:
A 6.00 kg block is in contact with a 4.00 kg block on a horizontal frictionless surface. The 6.00 kg block is being pushed by a horizontal 20.0 N force. what is the magnitude of the force exerted on the block with mass 4 kg by the block with mass 6 kg?
would the order of the ranking for the different forms of light listed in part a be different if you were ranking the frequency of the different forms of light (lowest to highest, left to right)? what if the ranking is done for the wavelengths of the different forms of light (shortest to longest, left to right)?
If you were to rank relative frequency of the various forms of light, the rankings for the ones in part A would be different. Due to the direct relationship between energy and frequency, the ranking on frequency would follow the same pattern.
Why is frequency important?The amount of waves which pass a fixed place in a unit of time is referred to as frequency in physics. It also indicates how many vibrations or cycles a body undergoing periodic motion makes in a given amount of time.
What frequency does sound have?The frequency of a sound pressure wave, also known as pitch, is indeed the amount of times per sec that this really repeats. The frequency of a drum beat is substantially lower than that of a whistle, while the frequency of a bullfrog cry is lower than that of a cricket. The number of oscillations decreases with decreasing frequency.
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how much work is done by the force of gravity when an object moves from the surface of the earth to a height above its surface equal to its radius r?
The direction of the gravitational force acting on a satellite as it orbits the Earth is perpendicular to the displacement of the spacecraft. As a result, the Earth has done no work at all to the satellite.
Is gravity capable of doing any work?We need the pull of gravity (Fg=mg F g = m g, where m represents the mass but also g is the angular velocity, for example, g=9.8 m/s2 on Earth) and the deflection in the path of the that force, which is downward and vertical in the case of gravity, in order to calculate the jobs performed by gravity.
Is gravity always doing negative work?The effort done by gravitation will be negative if the object goes uphill since the gravity's direction of motion is the polar opposite of displacement The jobs completed by gravitation will be positive if a ball travels downward since both gravity and displacement are operating properly.
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A pair of electrons would have_________when they are close together than whenthey are far apart.A) less electric chargeB) more electric currentC) more electric chargeD) less electric potential energyE) more electric potential energyF) less electric current
Explanation:
E) more electric potential energy.is the magnitude of the normal force exerted on the person greater than, less than or equal to the magnitude of the weight force on the person?
Answer: the magnitude of the normal force is greater than the magnitude of the weight of the person. Goodluck! i hope this helps<33
Explanation:
a helicopter is flying horizontally at 7.96 m/s and an altitude of 19.6 m when a package of emergency medical supplies is ejected horizontally backward with a speed of 11.9 m/s relative to the helicopter. ignoring air resistance, what is the horizontal distance between the package and the helicopter when the package hits the ground?
When the item hits the ground, there will be a 103.97m horizontal distance between the helicopter and the package.
The meaning of horizontal distance?Regardless of the relative height of the two places, the distance between two points in surveying is considered to indicate the horizontal distance. The distance between a building and the observer is an example of a horizontal distance, and the building's height is an example of a vertical distance.
Vpac = Vpwrt - Vhelicopter
Vpac = 11.9 - 7.96
Vp = 3.94m/s
t = √2h/g
t = √2×19.6/10
t = 8.76sec
Now, x = Vpac × t
x = 3.94 × 8.76
x = 34.51m.......(i)
y = Vheli. × t
y = 7.96 × 8.76
y = 69.46m .......(ii)
Now by adding both the equation
(i) + (ii)
x + y
34.51 + 69.46
103.97m
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from which location could you observe all of the stars during the course of a year?
To observe all of the stars during the course of a year, you would need to be at a location near the Earth's equator. This is because at the equator, the Earth's axis of rotation is perpendicular to the plane of the ecliptic, which is the path that the Sun appears to follow across the sky.
From where the equator of earth passes from?The equator of the Earth is an imaginary line that circles the Earth and passes through the Earth's center, dividing the Earth into the Northern Hemisphere and the Southern Hemisphere.
In how many parts the earth is divided?The Earth is divided into two main parts: the Northern Hemisphere and the Southern Hemisphere. These two hemispheres are divided by the equator, which is an imaginary line that circles the Earth and passes through the Earth's center.
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what would the radius (in mm) of the earth have to be in order for the escape speed of the earth to equal the speed of light (300000000 m/s)? you may ignore all other gravitational interactions for the rocket and assume that the earth-rocket system is isolated. hint: the mass of the earth is 5.94 x 1024kg
The rocket is propelled forward by thrust, which forces gases downward in the opposite direction. The weight of the rocket is the force of gravity dragging it downward and toward the centre of the Earth. A newton (N) of weight is equal to 9.8 kilogrammes of mass.
What G forces are there during a rocket launch?The acceleration caused by gravity is measured in units of g, where one g represents the normal pull of gravity. Early astronauts encountered launch and re-entry forces of up to 6 g or more; on liftoff from the space shuttle, more than 3 g is felt.
The conservation of momentum is the basis for how the rocket operates. The moment of the body always stays in accordance with the conservation of momentum inside a problem area.
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What type of energy does the skater have at any point between the starting point and the lowest point on the track?
The skater have kinetic energy at any point between the starting point and the lowest point on the track.
What is kinetic energy?The energy an object has as a result of motion is known as kinetic energy in physics. It is described as the effort required to move a mass-determined body from rest to the indicated velocity.
The body holds onto the kinetic energy it acquired during its acceleration until its speed changes. The body exerts the same amount of effort when slowing down from its current pace to a condition of rest.
The skater have kinetic energy at any point between the starting point and the lowest point on the track.
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