12 points which is a mixture that will separate naturally a) salt water b) drawer of office supplies c) oil and vinegar salad dressing

In a heat engine if 1000 j of heat enters the system and the piston does 500j of work, what is the final internal energy of the system if the inital energy was 2000 j1.write the equation2.list out your known variables 3. plug the numbers into the equations4.solve 5.write your solution statement that includes initial energy and final energy added.

You can melt ice by applying pressure because the solid/liquid line has a slope.

Galileos view of arrangement of the universe