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Katena32 [7]
3 years ago
13

Which physical law underlies the first law of thermodynamics?

Physics
1 answer:
LenaWriter [7]3 years ago
8 0

Answer:

Conservation of energy

Explanation:

The first law of thermodynamics is given by :

Q=\Delta U+W

Here,

Q is amount of heat added to the system

\Delta U is change in internal energy

W is amount of work done by the system

It is clear that the energy can be neither created nor destroyed, it remains conserved. Hence, first law of thermodynamics shows that conservation of energy.      

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Answer:

250 / 2.5*10^2

Explanation:

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2 years ago
Why aren't humans as evolved as we think we are?
bezimeni [28]
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Hope this helps
8 0
3 years ago
A photograph is taken by letting light fall on a light-sensitive medium, which then records the image onto that medium. True or
Jet001 [13]

Answer;

The above statement is true.

-A photograph is taken by letting light fall on a light-sensitive medium, which then records the image onto that medium.

Explanation;

-A photograph is created when light is allowed to fall on a light-sensitive medium. The pattern of light creates an image that is recorded by the photographic device. How light or dark a photograph is depends on how much light was allowed to fall on the light-sensitive medium.

-A camera is a light-tight box that contains a light-sensitive material or device and a way of letting in a desired amount of light at particular times to create an image on the light-sensitive material.

6 0
3 years ago
How much gravitational potential energy does a 45.2 kg object have when it is 21.9m above the ground?
Blizzard [7]

Answer:

Explanation:

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Ep = m · g · h   Assuming that the acceleration is g = 10m/s²

Ep = 45.4 · 10 · 21.9 = 9,942.6 J

God is with you!!!

6 0
3 years ago
A vase of flowers is stationary on a table. which of the following statements best explains why the vase is stationary?
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