Ice is placed in hot water. what happens to the temperature of the ice and the water?

the ice and the water both get cooler.
the ice gets warmer, and the water gets cooler.
the ice gets warmer, and the water stays the same.
the ice gets cooler, and the water gets warmer.

The nuclear potential that binds protons and neutrons in the nucleus of an atom is often approximated by a square well. imagine a proton conned in an innite square well of length 105 nm, a typical nuclear diameter. calculate the wavelength and energy associated with the photon that is emitted when the proton undergoes a transition from the rst excited state (n 2) to the ground state (n 1). in what region of the electromagnetic spectrum does this wavelength belong?