You and your friend enter a drawing with a different prizes. A total of 11 people entered the drawing, and prices are awarded randomly
There are 990 ways to award the prizes
What is the probability that you win first prize and your friend wine second

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