Posted by Rony on Tuesday, February 16, 2010 at 12:29pm.
Is there some failure of Coulomb's law here?
F=kQQ/r^2
The two Q's in the Coulomb equation are different in this case.
Call them
Q1 = 2.50 C and
Q2 = 1.75 * 10^-8 C .
I think you may have left out an exponent on Q1. 2.5 C is enough for a major lightning strike.
You may need to convert r to meters, depending upon which units
you use for k.
how long did it take 4 u 2 knw physics
r is equal 1.25cm
A charge of 4.10 is placed at each corner of a square 0.100 on a side.
Determine the magnitude of the force on each charge.
Determine the direction of the force on each charge. Assume that the positive x-axis is directed to the right.
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