True : <span>There are numerous third-class </span>levers<span> in the human </span>body<span>; one example can be illustrated in the elbow joint</span>
Answer: A. Work is done on the system and heat is transferred from the system for a net decrease in internal energy.
Explanation:
A refrigerator is a device which dispenses heat from the close system to a warmer area or in the surrounding. By dispensing the heat the internal temperature of the refrigerator drops. The system of refrigerator violates the second law of thermodynamics. As it performs the work to cool the region instead of heating the region. The work is done on the system and the internal energy decreases and the heat energy is liberated to the surrounding area. A refrigerator is an open system.
55 meters. If she started at 10 meters and ran 45 more, 10+45=55.
Black hole
hope it helped
<span>As the body rises up its gravitational potential energy increases but its kinetic energy decreases.
As a body falls its gravitational potential energy decreases but it's kinetic energy increases</span>
