can someone help me with these problems ty

'obloms: 2. When two electrons are separated by 1 .5 x 10" m. what lorce will the each other? (Charge on an electron - -1 .60 x 10'\" C). y ate\" 0\" i. Two ping pong balls are suspended 2.5 m apart from each other from the ceiling by strings. One of the ping pong balls has a charge of 5 x 10\" C and the other has a charge 3 x 10'6 C. a. What is the magnitude of the electric force between the two balls? b. is this force attractive or repulsive? '3 C, and a sphere with a charge of 9 x 10\" Two spheres with a charge of 3 x 10 s the distance between the two have a force between them is 22 N. Whati spheres? Is this charge attractive or repulsive