30. a student correctly determined the
density of two rocks. if the volumes of
the two rocks are equal, the rock with
the greater density has a
a. rounder shape
b. smoother surface
c. greater mass
d. smaller size

Protons and neutrons are found within the nucleus of an atom

Which safety measures should you follow during a thunderstorm? check all that apply. (a) avoid touching anything that conducts electricity. (b) avoid touching a person who has been struck by lightning. (c) go outside. (d) keep your computer turned off. (e) stay out of water. (f) stay inside.

How is the gravitational force related to the distance between two objects?