Calculate the force of gravity acting on an 80kg person on earths surface. A. 40N
B. 392N
C. 588N
D. 784N

Please help!

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.

Two polarizers are oriented at 70∘∘ to one another. unpolarized light falls on them. what fraction of the light intensity is transmitted?

The total amount of energy contained in an object