In the netherlands there is an annual ice-skating race called the "tours of the eleven towns" the total distance of the course is 2.00*10 squared km and the record time is 5 hours, 40 minutes, and 37 seconds. calculate the average speed for the record time.

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