A student on her way to school walks four blocks east, three blocks north, and another four blocks east, as shown in the diagram,
Compared to the distance she walks, the magnitude of her
displacement from home to school is?
less
the same
cannot be
determined
greater
x
0972

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