The speed of sound in air on a certain stormy day is about 1130 feet per second. you see a flash of lightning striking some distance away, and four seconds later you hear the clap of thunder. how many miles away did the lightning strike?

Answer  4,520 feet   Explanation The light and the sound were produced at the same time but sound took long to reach since is speed is much lower than the speed of light. Speed is the rate of change of distance.  So; Distance = speed × time                 = 1130 × 4                  = 4,520 feet.

increasing transnational kinetic energy. because the transnational kinetic energy formula consists of only two variables, mass and velocity, increasing one of those properties is the only way to increase an object's transnational kinetic energy. increases to mass and velocity, however, do not have the same impact.