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A gun of mass 5k g fires a bullet of mass 20 g with a speed of 100 m/s. Find the recoil velocity of the gun
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In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -
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Consider the following reaction: 2h2 + o2 —> 2h2o a) what are the reactants in this reaction? b) what are the products in this reaction? c) how many molecules of oxygen are used in this reaction?
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As molecules are formed from metabolism, entropy __ and the universe becomes less disordered. a. is decreased b. is increased c. moves closer to equilibrium d. is unchanged
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A gun of mass 5k g fires a bullet of mass 20 g with a speed of 100 m/s. Find the recoil velocity of...
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