Common static electricity involves charges ranging from nanocoulombs to microcoulombs. (a) how many electrons are needed to form a charge of −2. 70 nc?.

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.

Auniform crate c with mass mc is being transported to the left by a forklift with a constant speed v1. what is the magnitude of the angular momentum of the crate about point a, that is, the point of contact between the front tire of the forklift and the ground

What is the difference between mass density and weight density?