Noting that pressure is a force over a area (p=f/a, and the equation for gravitational force is f= m x g (where m is the masses of a person in kilograms and g=9.8m/s^2), what pressure [in n/m^2, which is also called pascal (pa)] would be exerted if a 65 kg person were sitting on a stool with a seat diameter of 12 inches?

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?

Which statement accurately represents the arrangement of electrons in bohr’s atomic model?

Anitrogen atom and an oxygen atom combine chemically to form nitric oxide. what is nitric oxide?