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four persons each with a mass of 731 kilogram are in a van with a mass of 1150 kilogram an earthquake strikes the
a 750 kilogram ice skater moving at 100 ms crashes into a stationary skater of equivalent mass after the collision the
a 125 gram mass us attached to the end of an unstressed vertical spring of constant 494 nm and then dropped the
a spring has a force constant of 20000 nm compute how far must it be stretched for its potential energy to be 36
a car traveling at 30 ms suddenly encounters a 20o hill the car is coasting with no power input if there is no friction
if you had only one telescope and wanted to take both visible-light and ultraviolet pictures of stars explain where
a rescue helicopter lifts a 75 kilogram person straight up by means of a cable the person has an upward acceleration of
a 0063 kilogram arrow is fired horizontally the bowstring exerts an average force of 60 newton on the arrow over a
a small plane takes off and flies 120 kilometer in a direction south east of the airport at this point following the
a 1055 kilogram van stopped at a traffic light is hit directly in the rear by a 660 kilogram car traveling with a
a swing ride at a carnival consists of chairs that are swung in a circle by 120 meter cables attached to a vertical
a model airplane is being flown on a guideline that can sustain at most 180 newton of tension the mass of the plane is
a 60 kilogram lady stands on the back of a 6 meter long 120 kilogram raft that is floating at rest in still water with
a projectile is fired vertically upward with a speed of 720 ms determine the maximum height that this projectile
the brochure advertising a sports vehicle states that the vehicle can be moving at 1000 kmh and stop in 3975 m find its
a man pulls a toboggan for a distance of 500 meter along the snow with a rope directed 300 degree above the snow the
a 713 kilogram elevator starts from rest it moves upward for 359 second with a constant acceleration until it reaches
calculate how fast must a centrifuge rotate if a particle 60 centimeter from the axis of rotation is to experience a
if a force of 2 newton is needed to open a 92 centimeter wide door when applied at the edge opposite the hinges
a 1920 kilogram car accelerates uniformly from rest to 121 ms in 258 secondcompute the work done on the car in this
in one hand you hold a 011 kilogram apple in the other hand a 024 kilogram orange the orange and apple are separated by
in a large centrifuge used for training astronauts and pilots a chamber is fixed at the end of a rigid arm that rotates
a study guide for a test and i need to correct answers so i can study for the test i will post the entire 20
a tennis ball has a velocity of 26 ms and a mass of 561 gram after the ball hits a tennis racket the velocity becomes
an electric drill draws 37 a rms at 140 v rms if the current lags the voltage by 40 degree what is the drills power