The number of turns in a solenoid is doubled, and at the same time its length is doubled.

Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?

The strong nuclear force acts over a small distance than the electrostatic force. true or false

Which is a substance that can be separated by physical means and is not the same throughout