13. A linear spring has a constant of 37716 N/m. How much force is necessary to stretch it 0.39 m?​

In the equation F=kx, F is the force, k is the spring constant, and x is the displacement. Plug in and solve:

F=0.3(1.5)

F=0.45N

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

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