I need this ASAP, 10 points for a correct answer An engine uses 29kN to power a car at an average speed of 7.5 m/s.
This is equivalent to an output power of 217.5 kW. If the input power is 300 kW, efficiency is 72.5 percent.

what is the energy lost at this time?

"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.