A cylindrical container is filled with oil to depth of 32cm if the pressure exerted at the base of the container is known to be 2560pa then how much is the density of the oil?

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.