Kay heats 50.00 grams of iron from room temperature (25.0°C) to 89.0°C, If 1430. Joules of
energy were needed to do this, what is the specific
heat capacity of iron?

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?