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3 years ago

What is heat?

Physics

2 answers:

alina1380 [7]3 years ago

3 0

Answer:

Heat is the energy that flows between two substances of different temperatures.

Explanation:

Heat is a type of energy in transition that is transferred by non-mechanical means between systems, which means that it is energy that is transferred (or that flows ) from one system to another.

This flow of energy occurs due to a temperature difference, and heat will flow from the system or substance with a higher temperature to the substance with a lower temperature, and if kept in contact they will eventually reach the thermal equilibrium.

So the correct answer is: Heat is the energy that flows between two substances of different temperatures.

Xelga [282]3 years ago

3 0

Answer: The answer is D) Heat is the energy that flows between two substances of different temperatures.

Explanation: I have taken this test before lol.

Make sure to say thanks and leave a rate!! :)

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Answer:

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B) $12.2480\pm 0.1029\ m^2$

Explanation:

Given:

Length of the room $l= 3.92 ± 0.0035$

Width of the room $w= 3.15 ± 0.0055$

A) Let A be the area of the room

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B)We will calculate uncertainty in each dimension

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%uncertainty in width = $\dfrac{0.0055}{3.15}\times 100=0.0174%$

The uncertainty in area will be sum of uncertainty in length and width

%uncertainty in Area= %uncertainty in length + %uncertainty in width

%uncertainty in Area $=0.0892\ % + 0.0174\ %$

%uncertainty in Area=0.0106

Uncertainty in Area $=0.0106\times 12.2480=0.1029\ \rm m^2$

There Area is $12.2480 ± 0.1029\ \rm m^2$

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