Agasoline engine receives 200 j of energy from combustion and loses 150 j as heat to the exhaust. what is its efficiency? 75% 25% 33% 125%

An object is dropped from a tower, 400 ft above the ground. the object's height above ground t seconds after the fall is s(t)equals400 minus 16 t squared. determine the velocity and acceleration of the object the moment it reaches the ground. the velocity of the object the moment it reaches the ground is nothing ft/s.

Which branches of natural science include the study of an organism that lived 10 million years ago

Aa a of 22 m/s at an of 36.9 .be . a. b. c. (3)x y of? (3)go? (4) () it to to ?