The length of a rectangle is 3 times its width. The perimeter is 39. Find the length and width of the rectangle.
1 answer:
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The charge Q is 512 c.
Step-by-step explanation:
Step 1:
The equation is , where q and Q are the charges, R is the distance between the charges, and F is the force between the charges.
From the question, we have;
F = 40 Newton, R = 16 m and q = 20 C.
We need to calculate Q.
Step 2:
By substituting the values of F, R, and q in the equation, we get
.
We cross multiply to solve Q.
So Q = 512 C.