Question

2. A young woman accumulates a charge q1 of +2.0 x 10-5C while sliding out of the
front seat of a car. Her boyfriend who has been waiting in the wind, has gained
electrons and now has a charge q2 of -8.0 x10-5C.
a. estimate the magnitude of electrical force that each person exerts on the
other when separated by a distance of 6.0 m. Is this force attractive or
repulsive?
b. Suppose the two moves toward each other, calculate the magnitude of the
electrical force of one on the other when their separation is reduced by a
factor of 0.50.
3. Two like and equal charges are at a distance of d= 5cm and exert a force of
F = 9x10-3N on each other.
(a) Find the magnitude of each charge?
(b) What is the direction of the electrostatic force between them?
4. Two equal charges of magnitude 1.1 x 10-7 C experience an electrostatic force of
4.2 x 10-4 N. How far apart are the centers of the two charges?

Answer 1

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