Answer the following with clear instructions

GENERAL PHYSICS 2 PROBLEM SET #1 : COLDUMB'S LAW F : k l'hlif: ' r 111'!!! k = 3.99x10" NJ\": KC: 1. Two charged spheres 10 cm apart attract each other with a force of 3.0 x 10 6 N. What force results from each of the following changes, considered separately? a) Both charges are doubted and the distance remains the same. b} An uncharged, identical sphere is touched to one of the spheres, and then taken far away. c) The separation is increased to 30 cm. 2. The force of electrostatic repulsion between two small positively charged objects, A and B, is 3.6 x 10 5 N when AB = 0.12m. What is the force of repulsion if AB is increased 1g a} 0.24 m p} 0.36 m |=I 3. Calculate the force between charges of 5.0 x 10 8 C and 1.0 x 10 7' C ifthey are 5.0 cm apart. 4. What is the magnitude of the force a 1.5 x 10 6 0 charge exerts on a 3.2 x 10 4 (3 charge located 1.5 m away? 5. Two spheres; 4.0 cm apart, attract each other with a force of 1.2 x 10 9 N. Determine the magnitude of the charge on each, if one has Mice the charge {of the opposite sign} as the other