. Một bình kín không dãn nở, chứa 14g nitơ ở 1atm và 27°C, được đung nóng làm áp suất tăng lên đến 5atm. Hãy xác định:

1 answer:

8 0

Answer:

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azamat

That would be a the first law of newton's laws of motion because it stops from an external force

6 0

3 years ago

8090 [49]

The answer is A bc I did the quiz and I got it right

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3 years ago

7nadin3 [17]

Answer:

Buoyancy force and surface tension are the reactions that take places between soap and pepper experiment.

Explanation:

Surface tension:

The surface tension of a liquid is the tendency of liquid surfaces to resist an external force due to the cohesive nature of its molecules.

The pepper and soap experiment helps you to understand buoyancy force and surface tension.

Reaction between the pepper and soap is as following.

The pepper flakes float because of buoyancy force. It makes the pepper flakes to move away to the edge of the plate.

And The pepper flakes are so light, it floats on the water surface due to surface tension.
when we add soap, it breaks the surface tension of water, but the water resists it. So they pull away from the soap along with the pepper flakes.
This pushes the pepper away from your soap covered finger.

This is the reaction that take places between soap and pepper experiment.

Learn more about Pepper and soap experiment here:

6 0

2 years ago

Andreas93 [3]

Answer:

$v=1.08\times 10^7\ m/s$