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If astronomers watch the stars all night, they have to keep moving their telescopes as the stars seem to move across the sky. Why does this happen?
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According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f
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If steel is more dense that lake water, why can a boat float
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Physics, 22.06.2019 07:30, babygreg2001p97abr
Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?
Answers: 1
If astronomers watch the stars all night, they have to keep moving their telescopes as the stars see...
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