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12-04-2017
Physics

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Under what conditions will an object experience a gravitational force?
Under what conditions will an object experience an electric force?
Under what conditions will an object experience a magnetic force?

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12-04-2017

a) an object with mass > 0 in a gravitational field
b) an object with an electric charge not 0 in an electric field
c) a moving object with an electric charge not 0 in a magnetic field

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