You do 185 j of work pulling a cart up a ramp. if the ramp does 153 j of work, what is the efficiency of the ramp? 82.7 percent 121.0 percent 32.0 percent 338.0 percent

volume: 22

density: 7.04

"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.