Physics, 21.02.2020 05:24 tylerjoshonti
List two ways to measure the gravitational potential energy of a ball when it’s dropped from different heights.
Answers: 3
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You are driving to the grocery store at 20 m/s. you are 110m from an intersection when the traffic light turns red. assume that your reaction time is 0.50s and that your car brakes with constant acceleration. how far are you from the intersection when you begin to apply the brakes? what acceleration will bring you to rest right at the intersection? how long does it take you to stop after the light changes? the known values: vi=20m/s xi=110m t=.50s vf=0m/s xf=0m a=?
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List two ways to measure the gravitational potential energy of a ball when it’s dropped from differe...
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