3simple machines that make up a can opener

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

Carbon 14 is a naturally occurring stable

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.