The electric field near the surface of the earth points downward and has a magnitude of 150

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The electric field near the surface of the earth points downward and has a magnitude of 150 N/C.

(a) Compare the upward electric force on an electron with the downward gravitational force.

(b) What charge should be placed on a penny of mass 3 g so that the electric force balances the weight of the penny near the earth's surface?

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Fundamentals of Ethics for Scientists and Engineers

ISBN: 978-0195134889

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Authors: Edmund G. Seebauer, Robert L. Barry

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Question Posted: Jul 16, 2011 09:20 PM

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The electric field near the surface of the earth points downward and has a magnitude of 150

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a Ee mg 150 16 10 19 91 1...View the full answer

Fundamentals of Ethics for Scientists and Engineers

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