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A camera has a converging lens with a focal length of 56mm. If the f-number is 2.8,what is the diameter of the lens
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If there's a small amount of friction between two surfaces, the result could be select all that applya. no movement b. heatc. a little bit of movementd. sliding around
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During cooling, the kinetic energy of the molecules falls. why does this happen? a.the motion of the molecules increases. b. the motion of the molecules slows down. c.the van der waals forces between molecules decrease d. the forces of attraction between the molecules are overcome.
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Elements on the periodic table are ordered according to their
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Many stereo speaker cables are made of copper wire surrounded by rubber. the electricity travels down the copper portion of the cable while the rubber protects you from being "zapped" by the electricity. which physical property explains the difference in ability of copper and rubber to transmit electricity?
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A camera has a converging lens with a focal length of 56mm. If the f-number is 2.8,what is the diame...
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