A certain string can withstand a maximum tension of 40 N without breaking. A child ties a 0.37kg stone to one end and, holding the other end, whirls the stone in a vertical circular radius 0.91 m, slowly increasing the speed until the stone breaks. (a) Where is the stone on its path when the stone breaks? (b) What is the speed of the stone as the string breaks?
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Is it possible to use the energy from two atoms colliding to create a clean burning lasting fuel source with a large amount of force? is it also possible to harness that energy from the two atoms colliding to create a clean energy source that will last for years from just two atoms colliding. is there a possibility to control and store that energy for years but slowly let the energy out enough to power cities cheaper and faster.
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Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage
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Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely
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A certain string can withstand a maximum tension of 40 N without breaking. A child ties a 0.37kg sto...
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