Which of the following is an example of the electrostatic force acting in an atom?
A. A neutron repelling a proton
B. A neutron repelling an electron
C. An electron repelling another electron
D. A proton repelling an electron

A0.750 kg aluminum pan is removed from the stove and plunged into a sink filled with 10.0 kg of water at 293 k. the water temperature quickly rises to 297 k. what was the initial temperature of the aluminum pan? the specific heat of aluminum is ca = 900 j/(kgk) and water is cw = 4190 j/(kgk)

Two balls, each with a mass of 0.5 kg, collide on a pool table. is the law of conservation of momentum satisfied in the collision? explain why or why not

Which of these is the best way to manage a natural resource