What are some real - life examples of when you want to keep heat energy from being lost to the environment?

The answer should be geothermal i hope i’m right message me if i’m wrong and i’ll change my answer and fix it for you

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on