Will upvote every answer! multiple choice!

the pointer of an analog meter is connected to a
a. permanent magnet.
c. coil suspended by bearings.
b. electromagnet.
d. voltage to frequency converter circuit.

What determines the amount of inertia an object has

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change

How does the electric potential energy between two charged particles change if one particle is reduced by a factor of 3? a. increased by a factor of 3 b. it is decreased by a factor of 9 c. it is reduced by a factor of 3 d. it is increased by a factor of 9