What determines the ideal mechanical
advantage of a pulley?

What is the fate of the electrons that interact with a specimen in an electron microscope?

Explain earth's motion, using the terms "precession" and "rotation" in your answer.

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.