Ask your teacher a street light is mounted at the top of a 15-ft-tall pole. a man 6 ft tall walks away from the pole with a speed of 7 ft/s along a straight path. how fast is the tip of his shadow moving when he is 30 ft from the pole?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final