Evelynn is measuring the pitch of a piano note. What unit of measurement is she most likely recording her value in? hertz decibels frequency amplitude

An object's buoyant force and weight mean the same thing.a. trueb. false

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

If we relied solely on the nonrenewable resources found in the u.s., which one would we run out of first at current usage levels? a. natural gas b. oil c. uranium d. coal