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How would you place two electrons on a sphere of radius r so that the electrostatic potential energy is minimized. how would you place three electrons to solve the same problem.
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Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?
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Oxygen undergoes an isentropic expansion from 120 degree c and 280 kpa absolute to 140 kpa absolute. determine the final temperature of the oxygen and the amount of work per kg of o_2 produced in the process if it is adiabatic.
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a wooden trolley of mass 20 kg accelerates at 2 m/s-{2}, if force due to engine is 50 N, friction fo...
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