What control what enter and leaves the cell in a animal cell

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

Three charge are arranged as shown in the diagram. the magnitude of the net electrical force acting on the +6 uc charge, rounded to the tenths place, is .

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles