You remove two socks from a hot dryer and find that they repel with forces of 0.005 N when they’re 4 cm apart.?
You remove two socks from a hot dryer and find that they repel with forces of 0.005 N when they’re 4 cm apart. If they have equal charges, how much charge does each sock have? Round the answer to 3 significant digits.
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The force of repulsion F = 9*10^9 [q/r]^2 if q's are equal.
0.005 = 9*10^9 [q /0.04]^2
q^2 = 0.005 *0.04*0.04 / 9e9
q =[ + or -]2.98x10^-8 C
Both are either positive or negative,
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