Physics, 13.07.2019 23:40 Emptypockets451

The diagram shows a heat engine. in which area of the diagram is unusable thermal energy detected? w x y z

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Nope, I disagree with the former answer. The answer is definitely Z. W area (boxed with red outline) is represented as the hot reservoir while Z area is the cold reservoir (boxed with blue outline). X area is the heat engine itself and Y area is the work produced from thermal energy from hot reservoir. Typically, all heat engines lose some heat to the environment (based from the second law of thermodynamics) that is symbolically illustrated by the lost energy in the cold reservoir. This lost thermal energy is basically the unusable thermal energy. The higher thermal energy lost, the less efficient your heat engine is.

Answer from: Arelysoqui91

Z is the area of the diagram which has unusable thermal energy

detected.

What is Thermal energy?

This is also referred to as heat energy and it is responsible for

temperature differences in a body or area.

The Z region which is denoted by blue is referred to as the cold

region while the W region is the hot region. We know that since

heat is usually lost to the surroundings , then heat has been lost

to the Z region which is unusable and detected

Read more about Thermal energy here link

Answer from: Quest

Jet streams are relatively narrow bands of strong wind in the upper levels of the atmosphere. the winds blow from west to east in jet streams but the flow often shifts to the north and south. jet streams follow the boundaries between hot and cold air. the earth's rotation is responsible for the jet stream as well.

Answer from: Quest

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

How does a pendulum model an energy conversation system?

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The diagram shows a heat engine. in which area of the diagram is unusable thermal energy detected?...

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