What would be the atomic number of an atom that is composed of 15 protons and 18 neutron?
3
15
33
18

Frost wedging occurs when water seeps into a crack in a rock, freezes, and causes the crack in the rock to widen. t or f

If forces acting on an object are unbalanced. true or false

Hunter’s velocity was 4.5 m/s. at the end of his race, his velocity was the same. which best describes his movement? his movement stopped. his acceleration is zero. his time was constant. his acceleration was positive.