shawn uses a 45N of force to stop the cart 1 meter from running his foot over. How much work does he do?

Curious carl calculated the density of a cube to be 4.50 g/cm3. what is the density of the cube in g/l?

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.

Does heating a metal wire increase or decrease its electrical resistance? why?