Aperson's heartbeat is 66 beats per minute. if his/her heart beats 3.1e9 times in a lifetime, how long (in whole years) does the person live? disregard leap years.

Which of the following might a chemist choose to study? a. glacier movement in alaska b. better ways to recycle plastics c. the effects of hurricanes on turtle populations d. the vibrations in bridges caused by big trucks

Is laundry detergent an acid or a base?

Displacement is the slope of a velocity vs. time graph a. true b. false