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One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?
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Glass has a hardness that is in the middle of the hardness scale. what is the hardness of glass?
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A 64kg wheel with radius 2.4m is rotating at 280rev/min. If you want to stop it in 30sec. (use point...
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