Some areas of the moon, whether seen from the perspective of an individual on Earth or an astronaut standing on its surface appear darker than others. Explain why you think this happens.

"i have always loved contemporary art and made it a general goal to work within the field. after a few nonprofit internships at museums and galleries, i decided to try the for-profit art world and was offered a job as the ad assistant at the magazine. i much prefer the pace of the for-profit art community and have stayed with the company for three years, with a promotion to an account manager last spring."

i just did this and got a 100.

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement