A scientist wants to figure out the coefficient of friction between a wooden box and a brick walkway outside of his house. He determines that the box weighs 20 kg and that the force of friction when he slides it is 163 N. What is the coefficient of friction between the box and the walkway?
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In a hydrogen molecule there are a total of four charges, 2 protons in the two nuclei, and 2 electrons. how many unique charge-pairs are there (without double counting)?
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The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?
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A scientist wants to figure out the coefficient of friction between a wooden box and a brick walkway...
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