3. Mechanical energy is similar to thermal energy because they both increase their kinetic energy when particles or objects move more slowly do less work as the amount of energy decreases o involve the combination of potential energy and kinetic energy travel in waves and have some magnetic properties

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.

Why do astronauts in the space shuttle weigh less?

Observations show that interstellar clouds can have almost any shape and