6 A charge of 4.5 x 10 90 is located
3.2m from a
charge of - 2.8x10
Find d electrostatic
force exerted on the
charge on the other

Aproton is projected toward a fixed nucleus of charge +ze with velocity vo. initially the two particles are very far apart. when the proton is a distance r from the nucleus its velocity has decreased to 1/2vo. how far from the nucleus will the proton be when its velocity has dropped to 1/4vo?

The respiratory system removes oxygen and water from the body. select the best answer from the choices provided t f

Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack