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An investigation is performed to determine how the angle of a ramp affects the speed of a ball as it rolls down the ramp. In addition to using the same ball and the same ramp, which of these should also remain constant?
Acceleration due to gravity is independent of mass.
Releasing the ball from the same position in each trial
She has a positive change in acceleration.
27 m
The mass of Earth is so much greater than any object on the planet that Earth exerts almost all of the gravitational force
8.4
Divide the distances by the times.
It is not exposed to X-ray radiation.
A student wants to test the impact of X-ray radiation on tomato plant growth. Which of the following guidelines should be followed when designing the control group?
Acceleration due to gravity is independent of mass.
Releasing the ball from the same position in each trial
She has a positive change in acceleration.
27 m
The mass of Earth is so much greater than any object on the planet that Earth exerts almost all of the gravitational force
8.4
Divide the distances by the times.
It is not exposed to X-ray radiation.
A bicycle with an initial velocity of 6.0 m/s accelerates at a rate of 2.0 m/s2 for 3 seconds. What distance does the bicycle travel during this time?
Acceleration due to gravity is independent of mass.
Releasing the ball from the same position in each trial
She has a positive change in acceleration.
27 m
The mass of Earth is so much greater than any object on the planet that Earth exerts almost all of the gravitational force
8.4
Divide the distances by the times.
It is not exposed to X-ray radiation.
From t = 10.0 seconds to t = 15.0 seconds, a space shuttle increased speed from 57 m/s to 99 m/s. What was the average acceleration of the shuttle?
Acceleration due to gravity is independent of mass.
Releasing the ball from the same position in each trial
She has a positive change in acceleration.
27 m
The mass of Earth is so much greater than any object on the planet that Earth exerts almost all of the gravitational force
8.4
Divide the distances by the times.
It is not exposed to X-ray radiation.
Galileo designed experiments in which he dropped objects with different masses from the same height. Regardless of the mass, the objects appeared to hit the ground at the same time. What did Galileo discover from these studies?
Acceleration due to gravity is independent of mass.
Releasing the ball from the same position in each trial
She has a positive change in acceleration.
27 m
The mass of Earth is so much greater than any object on the planet that Earth exerts almost all of the gravitational force
8.4
Divide the distances by the times.
It is not exposed to X-ray radiation.
Franklin wants to know how fast he runs different distances. He uses a stopwatch to measure the time it takes him to complete a 50-meter, 100-meter, and 200-meter race. How can he calculate his speed for each race?
Acceleration due to gravity is independent of mass.
Releasing the ball from the same position in each trial
She has a positive change in acceleration.
27 m
The mass of Earth is so much greater than any object on the planet that Earth exerts almost all of the gravitational force
8.4
Divide the distances by the times.
It is not exposed to X-ray radiation.
Near the surface of Earth, all objects have the same rate of acceleration when they fall in a vacuum chamber. Which best explains why objects with different masses will have the same acceleration?
Acceleration due to gravity is independent of mass.
Releasing the ball from the same position in each trial
She has a positive change in acceleration.
27 m
The mass of Earth is so much greater than any object on the planet that Earth exerts almost all of the gravitational force
8.4
Divide the distances by the times.
It is not exposed to X-ray radiation.
When a person parachutes from a plane, she travels at about 67 meters per second. When she pulls her cord and her chute opens, she slows to about 3 meters per second. When her parachute opens, which is happening?
Acceleration due to gravity is independent of mass.
Releasing the ball from the same position in each trial
She has a positive change in acceleration.
27 m
The mass of Earth is so much greater than any object on the planet that Earth exerts almost all of the gravitational force
8.4
Divide the distances by the times.
It is not exposed to X-ray radiation.
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