Physics Quiz
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MOTION AND STABILITY
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A proton and an electron are separated by some distance rr. The distance is then doubled to 2r2r. Which statement correctly describes how the magnitudes of the gravitational and electric forces change? Use Fgrav=Gm1m2r2F_{\text{grav}} = G\dfrac{m_1m_2}{r^2} and Felec=k∣q1q2∣r2F_{\text{elec}} = k\dfrac{|q_1q_2|}{r^2}.
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