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A rope is pulling a 25.5 kg mass along a horizontal surface. The kinetic coefficient of friction between the mass and the surface is 0.222. Find the tension in the rope required to accelerate the mass from 2.44 m/s to 8.33 m/s in 6.22 seconds.
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Question: A proton (with a rest mass m=1.67Ã-10âˆ'27kg) has a total energy that is 4.00 times its rest energy. Part A: What is the kinetic energy Ek of the proton? Express your answer in billions of electron volts to thr ...
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What is the (magnitude of the) velocity of a rollercoaster at the bottom of a track that is 89.8 m high if it starts from rest? (Use the value g = 9.8 m/s2 for the acceleration of gravity.) Please provide work to explain
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