2. What do pitch and loudness have in common? Both are measured in decibels, or dB.
Both depend on a wave's frequency.
Both are subject to a person's interpretation.

Both are subject to a persons interpretation

Explanation:

We hear people describe this when somebody is making an irresistible sound. usually people say the baby has a pitch scream.

c) up is the direction the magnetic force is acting on the charge.