In your opinion what would be the most devastating change to Earth if we had a second moon with significant mass?

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

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

J. j. thomson’s experiment disproved the theory that an atom