2. Two tugboats attempt to pull a barge across the harbor. The barge exerts a force of 7500 N north, while the tugboats exert a combined force of 9500 N south. Are the tugboats able to move the barge?

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

What can you increase the strength of an electromagnet by

Which change would make the diagram correct?