imagine that a golfer hits a gold ball straight up. the golf ball rises and strikes a bird that was flying above. if the balls initial velocity was 40 m/s and the bird was 21 meters above the ground determine how long (as in time) the ball was in the air for.

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell