How much heat is required to warm 1kg of ice at -40°c to all steam at 110°c? draw a representative temperature vs. heat phase diagram for this process

Give an example in which the electrical energy changes to light energy

What happens when a rubber rod is rubbed with a piece of fur?

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?