Physics

2. One +1.0 C (one coulomb) charge and another -1.0 C charge are located 1.0 m apart.
a. Calculate the magnitude of the electric force between them.
b. In what direction does the force act?

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  1. like charges repel
    opposite charges attract

    F = k Q1Q2/d^2
    k = 9*10^9
    https://en.wikipedia.org/wiki/Coulomb%27s_law

    so 9*10^9 Newtons

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