Objects 1 and 2 attract each other with a gravitational force of 52 units. If the mass of object 1 is doubled AND the mass of object 2 is tripled AND the distance separating objects 1 and 2 is halved, then the new gravitational force will be units. Answer value

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

Mechanical energy is when the amount of kinetic and potential energies added together remains the same. conserved created lost

Coal contains energy. a. light b. kinetic c. chemical d. mechanical