Using Coulomb's Law, determine how the electrostatic force is affected in the following situations. Two charges, , and @2 are separated by a distance, r and the electrostatic force between the 2 charges is F. a) If 21 increases by 5 times its original value, how does F (the force) change? b) If r is halved (reduced by 2), how would F (the force) change? c) If , is positive and @2 is negative the charges will? (attract or repel) d) if 2, is 5 times larger than , the force that , exerts on Oz is (greater than, smaller than, or exactly the same as) the force that 2 exerts on