7. What is the electric potential energy of two point charges of +35.0 pC and -45.0 PC separated by a distance of 5.00 m?
O U = 2.84 J
O U=-2.84 J
O U = -5.67 J
O U = 5.67J

The necleus of an atom is made up of what subatomic particles?

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.