Which is an example of potential energy.

Which characteristics can be used to differentiate star systems? check all that apply.

How does the motion of particles in a gas change as the gas cools

Consider hydrogen in an excited state n = 5n=5 that emits photons to reach the ground state. there are various possible transitions other than straight to the ground state that can occur; for example, it can drop to the n = 3n=3 state followed by the n = 3n=3 to the ground state transition. which of the possible transitions will result in the emission of a photon in the visible region?