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Dmitry [639]
3 years ago
6

Which is a source of thermal energy for a heat pump? •air •fire •sunlight •coal

Physics
2 answers:
natali 33 [55]3 years ago
6 0

Answer:

its air

give me thanks

Mekhanik [1.2K]3 years ago
6 0

Answer:

Air

Explanation:

give me a thanks its 100% right

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How much work is done when a 214 newton force pushes a sleeping cow 37m across a field.
nata0808 [166]
Hello!

Answer: 
7918 J

Explanation:

We are assuming that the floor (field) is completely horizontal since there's no information about that in the statement. 

We are going to use the following formula:

W= F . Cos \alpha . D

Where:

F=214 N
\alpha =0º
D= 37m

Then, by substituting we have:

W=214N . Cos (0).37m= 7918 N.m=7918 J

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Explanation:

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