Energy conservation with conservative forces: Two identical balls are thrown directly upward, ball A at speed v and ball B at speed 2v, and they feel no air resistance. Which statement about these balls is correct?A) At their highest point, the acceleration of each ball is instantaneously equal tozero because they stop for an instant. B) The balls will reach the same height because they have the same mass and thesame acceleration. C) At its highest point, ball B will have twice as much gravitational potential energyas ball A because it started out moving twice as fast. D) Ball B will go twice as high as ball A because it had twice the initial speed. E) Ball B will go four times as high as ball A because it had four times the initialkinetic energy.
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Abumper car with a mass of 250 kg is traveling at a speed of 4 m/s. this bumper car collides and sticks to a second bumper car with a mass of 250 kg, which is initially at rest. what is the final speed of these two bumper cars after the collision, assuming they remain stuck together?
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Would it be correct to say the doppler effect is the apparent change in the speed of a wave due to the motion of the source? be sure to fully explain your position using at least 3 complete content related sentences.
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Energy conservation with conservative forces: Two identical balls are thrown directly upward, ball A...
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