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What do heating systems, cooling systems, and heat engines have in common?

They deactivate thermal energy.
They create thermal energy.
They destroy thermal energy.
They transfer thermal energy.

2 Answers

5 votes

Answer: thay transfer thermal energy

Step-by-step explanation:

User Miir
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3 votes

Answer:

They transfer thermal energy.

Step-by-step explanation:

Energy can not be created or destroyed. Energy cannot be deactivated.

User Milan Baran
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