After a trip to mars, the human heart would be much stronger than it was on earth

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane

You throw a baseball directly upward at time =0 at an initial speed of 14.9 m/s. what is the maximum height the ball reaches above where it leaves your hand? ignore air resistance and take =9.80 m/s2.

Which describes increasing the efficiency of energy resource