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You suspend a 1 kilogram mass from a vertical spring (k=40 N/m) that is attached to the ceiling. After you release the mass, the spring stretches out and the mass falls. Determine how fast is the mass falling when the spring has stretched out 30 cm?
Determine the maximum stretch of the spring? (Determine how far the mass will fall before the spring starts pulling it back up?)
A man is standing on a platform that is connected to a pulley arrangement, as the drawing shows. What pulling force should the man apply to create an upward acceleration of 1.20 m/s2
A gymnast is performing a floor routine. In a tumbling run she spins through the air, How much time does this maneuver take
A skater has rotational inertia 4.2 kg?m2 with his fists held to his chest and 5.7 kg?m2 with his arms outstretched. how fast will he be spinning
a cargo barge is loaded in a saltwater harbor for a trip up a freshwater river. if the rectangular barge is 3.50 m by
a bell ringer decides to use a bowling ball to ring the bell. he hangs the 7.3kg ball from the end of a 2m long rope.
You are at the controls of a particle accelerator, sending a beam of 3.90×107m/s protons (mass m ) at a gas target of an unknown element. What is the speed of the unknown nucleus immediately after such a collision
A 1300kg car drives around a flat 190m diameter circular track at 30 m/s. What is the magnitude and direction of net force on the car.
A constant horizontal force moves a 50 kg trunk 3.0 m up a 29° incline at constant speed. What is the work done by the applied force
A 9.00 x 15.0 swimming pool slopes linearly from a 1.00 depth at one end to a 3.80 depth at the other. What is the mass of water in the pool
assume the earth to be sphere of a uniform densitya what is its rotational energy? take the radius of the earth to be
A diver running 2.5m/s dives out horizontally from the edge of a vertical cliff and 2.9s later reaches the water below. How far from its base did the diver hit the water
Formulate a response that addresses whether or not you agree more guidance is needed and why; what you support and do not support about the proposal and why; and illustrate what modification you would make to the guidelines.
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