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Astone is dropped from a cliff and falls 9.44 meters. what is the speed of the stone when it reaches the ground? a. 13.6 m/sec b. 1.39 m/sec c. 185 m/sec d. 9.80 m/sec
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Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?
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Define wave length as applied to wave motion​...
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