What value is closest to the mass of the atom?
4 amu
6 amu
10 amu
14 amu

What is the increase in density of a medium due to wave travel?

The discovery of the electron as a subatomic particle was a result of

Aturntable that spins at a constant 74.0 rpm takes 3.10 s to reach this angular speed after it is turned on. find its angular acceleration (in rad/s2), assuming it to be constant, and the number of degrees it turns through while speeding up.