From the Energy That Is Input into an Engine on Each

question 8

Multiple Choice

From the energy that is input into an engine on each cycle, 500 kJ of mechanical work are produced and 600 kJ of heat are exhausted into the environment. What is the efficiency of the engine?

• A)45.5%
• B)28.6%
• C)90.0%
• D)75.0%
• E)83.3%

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Definitions:

Weight

A measure of the gravitational force acting on an object, commonly used in various contexts to indicate the heaviness of an object.

Correlation

A numerical indicator showing the degree to which two or more variables move in relation to one another.

Correlation Coefficient

A statistical measure that indicates the extent to which two variables change together, and the strength and direction of their relationship.

Variables

Aspects of a study or situation that can change or vary, such as characteristics of participants or environmental conditions.