PLEASE HURR HELP M How much force is needed to move a 46kg cow moves 2.3 m/s on his wobbly little legs?

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

Select all the correct answers. which three statements about electromagnetic radiation are true?

Smallest intensity of a stimulus that you can detect 50 percent of the time is