Physics, 31.10.2019 01:31 tannerroland
An ideal spring hangs from the ceiling. a 1.25-kg mass is hung from the spring. after all vibrations have died away, the spring is found to have stretched 0.0275 m from its original length. the mass is then pushed up 0.0735 m from its equilibrium position and released. what is the kinetic energy of the mass at the instant it passes back through its equilibrium position?
Answers: 1
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Your friend increases her force on the desk by 30n . she doesn't change the direction of her push . what happens to the net force on the desk .will the desk accelerate
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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=?
Answers: 3
An ideal spring hangs from the ceiling. a 1.25-kg mass is hung from the spring. after all vibrations...
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