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How much work does it take to hold a dubbell motionless over your head for 10s?
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A50.0-n box is sliding on a rough horizontal floor, and the only horizontal force acting on it is friction. you observe that at one instant the box is sliding to the right at and that it stops in 2.25 s with uniform acceleration. what magnitude force does friction exert on this box
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Which statement best explains why an object weight less on mercury than it does on earth
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When an object is heated it contracts. a. true b. false
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A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm
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How much work does it take to hold a dubbell motionless over your head for 10s?...
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