Nevermind to my question.

According to newton’s law of universal gravitation, which statements are true? as we move to higher altitudes, the force of gravity on us decreases. as we move to higher altitudes, the force of gravity on us increases. as we gain mass, the force of gravity on us decreases. as we gain mass, the force of gravity on us increases. as we move faster, the force of gravity on us increases.

How can you measure the amplitude of a longitudinal wave?

Substances that assume the shape of their container, but do not have a definite size are called