The center of a 1.40km diameter spherical pocket of oil is, Ask an Expert

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Q. In a television set, an electron beam with a current of 5.0 x 10-6 ampere is directed at the screen. Approximately how many electrons are transferred to the screen in 60 seconds?

Q. The center of a 1.40km diameter spherical pocket of oil is 1.50km beneath the Earth's surface.Estimate by what percentage directly above the pocket of oil would differ from the expected value of g for a uniform Earth? Assume the density of oil is 8.0 x 10^2 kg/m^3.

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