Richard wrote a list of the advantages of using any one of the six simple machines. His list is below. Which statement about simple machines is not correct?

Acup of coffee sits on the dashboard of an automobile. the car goes around a sharp curve. even though you hold the cup still, coffee still splashes out. this can best be explained due to a) density. b) friction. c) gravity. d) inertia.

Most of the volume of an atom is occupied by the

How many neutrons does plutonium -196 with an atomic number of 78.