Which of the following situations violates the law of conservation of energy?
A. a ball dropped from the top of a building in speed until it hits ground
B. a block sliding freely on level ice increases in speed until it hits a wall
C. A child playing on a swing moves fastest at the bottom of the swing's path
D. The height a ball bounces decreases with each bounce
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Which change to the system wood cause the freely-moving piston to lower?
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As we move from left to right across the periodic table, what is the general trend? a) atomic radii increase. b) electronegavitiy decreases. c) nuclear shielding increases. d) metallic character decreases.
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Chemistry, 23.06.2019 00:30
The molecular weight of carbon dioxide, co2, is 44.00 amu, and the molecular weight of nitrous dioxide, no2, is 46.01 amu, so no2 diffuses co2
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Which of the following situations violates the law of conservation of energy?
A. a ball dropped fro...
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