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(40) Gauss's law for gravitational fields looks like f g . dA = 4TGmenclosed. Please denote the earth's radius as re. Note that menclosed =

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(40) Gauss's law for gravitational fields looks like f g . dA = 4TGmenclosed. Please denote the earth's radius as re. Note that menclosed = ] pdr where dr denotes a differential, spherical volume element (dV would look too much like voltage). Assume uniform mass density p, and find the gravitational field at the surface the planet where r = re

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