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Two electrons, each having mass 9.1 × 10-31 kg, are separated by a distance 10 Å. Calculate the gravitational force between them. |
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Answer» Given, mass of electron (me) = 9.1 × 10-31 kg Distance between them(r) = 10 Å =10 × 10-10 m G = 6.673 × 10-11 N m2 kg-2 The gravitational force between them (Fg) is given by, Fg = G x \(\frac{(m_e)(m_e)}{r^2}\) Fg = 6.67 x 10-11 x \(\frac{(9.1\times10^{-31})^2}{(10\,\times\,10^{-10})^2}\) = 5.52 x 10-53 N |
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