Arock is thrown from the top of a 20-m building at an angle of 53â° above the horizontal. if the horizontal range of the throw is equal to the height of the building, with what speed was the rock thrown? what is the velocity of the rock just before it strikes the ground?
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When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative
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Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?
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Arock is thrown from the top of a 20-m building at an angle of 53â° above the horizontal. if the hor...
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