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When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false
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In the 1980's, congress authorized the u.s. department of energy to build the wipp facility in the chicuahuan desert in new mexico. what is the purpose of wipp?
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Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is
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Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?
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If MARS is about 228,000,000km from the Sun. How would you find out how many minutes it takes light...
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