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tino4ka555 [31]
3 years ago
12

He metal aluminum coils in an air conditioner conduct thermal energy from inside the house and release it outside the house. Wha

t can be said about the coils when they are accepting the heat inside the house?
They must be warmer than the air inside the house.
They must be cooler than the air inside the house.
They must have more thermal energy than the air inside the house.
They must be more insulated than the air inside the house.
Physics
2 answers:
victus00 [196]3 years ago
7 0
They must be cooler than the air inside the house




If they where warmer than they would warm the room
Softa [21]3 years ago
6 0

Answer: The correct option is "They must be cooler than the air inside the house".

Explanation:

Thermal energy flows from the body at higher temperature to the body at the lower temperature.

In the given problem, the metal aluminum coils in an air conditioner conducts thermal energy from inside the house. The coils must be cooler than the air inside the house.

The thermal energy flows from inside the room to the coils in an air condition. Then, the thermal energy flows from the metal aluminium coils to outside the house.

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Answer:

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<u>Given information</u>

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Since this is thickness of all the cards, to get the thickness of a single card we divide the total thickness (plus uncertainty) by the number of cards hence

1 card=\frac {0.590}{52}±\frac {0.005}{52}= 0.0113461 ±0.000096 inches

Considering that thickness is given to 3 significant figures while uncertainty is to 1 significant figure, the final answer should also conform to these hence giving the first part of the answer to 3 significant figures while second part to 1 significant figure yields 0.0113 ±0.0001 inches

(b)

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n=\frac {0.0001}{0.00002}=5

We need 5 decks for the given uncertainty

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