Red riding hood drives the 432 miles to grandmother's house in 1 hour less than it takes the wolf to drive the same route. her average speed is 6 mph faster than the wolf's average speed. how fast does red riding hood drive?

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