A sound source emits 20. 0 w of acoustical power spread equally in all directions. The threshold of hearing is 1. 0 × 10-12 w/m2. What is the sound intensity level 30. 0 m from the source?.

gets less

"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.

prolly a beacuse the momentuem the car has increases while going down hill

0.55x745.7j and a calculator