Show that the divergence of the Coulomb or gravitational force is zero.
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- Consider an electron near the Earth's equator. In which direction does it tend to deflect if its velocity is (a) directed downward? (b) directed northward? (c) directed westward? (d) Directed southeastward? The answers are a) west b) zero deflection c) up d) down. Can you explainParticles 1 and 2 have the same magnitude of charge but oppositein sign: q1 = −q2 = 8.61 nC. However, m1 >> m2 = 36.1 μg such thatparticle 1 can be regarded as stationary in their electrical interaction.Suppose that they are initially separated by a distance of 3.92 cm. Find themagnitude of the escape velocity of particle 2 needed to escape from thepull of particle 1 to infinity.Answer as soon as u can (30 minutes left)