Suppose a 30 gram piece of iron is dropped into a container of water and gives off 165 J in cooling. Calculate the iron’s temperature change. The specific heat capacity of iron is 0.44 J/g⁰C.

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

Astudent weighing 700 n climbs at constant speed to the top of an 8 m vertical rope in 10 s. the average power expended by the student to overcome gravity is most nearly

What characteristics of hv2112 make it the best candidate to be classified as a thorne-zytkow object?