
#1
Feb208, 01:55 PM

P: 1

1. The problem statement, all variables and given/known data
My problem states that a pith ball hangs at 20 degrees from the verticle and weighs 3 grams. It is moved 10cm by a charged rod. They both have the same charge. It asks what is the charge on the ball in C and approximatley how many excess electrons are on the ball. 2. Relevant equations I have the equation kqq/rsquared 3. The attempt at a solution I found all the sides to the triangle and I do not know where to go from there. I do not know the charges so how can I use the equation with q in it? 



#2
Feb208, 02:26 PM

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P: 5,540




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