What can be said of the volume and pitch of note A relative to note B, if A has a lesser frequency but greater amplitude than B?

Aneutron and a proton combine to form a nucleus. why does the mass of the nucleus differ from the sum of the masses of the individual nucleons?

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

What’s #16 asking me and how do i solve it?