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Leno4ka [110]
3 years ago
15

During convection, heat warms up a fluid, making the fluid less dense so it begins to RISE. As the warm fluid moves, it begins t

o COOL causing the fluid to SINK
Physics
2 answers:
Fiesta28 [93]3 years ago
7 0

Answer:

True

Explanation:

Convection is a form of heat transfer that is predominantly common in fluids especially liquid and gas.

It occurs by the movement of a part of substance from one place to another based on density and temperature differences.

A typical convection cell is made up of a liquid that is heated. The liquid part close to the heat source becomes warmer and rises due to its low density. The part away from the heat source is more dense and begins to sink.

This analogy is commonly demonstrated in a boiling pot of water.

ivolga24 [154]3 years ago
5 0

Answer:

Rise, Cool, Sink

Explanation:

bc its right

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How much heat is absorbed by a 450g gold block as energy from the sun causes its temperature to change from 27°C to 32°C? (Speci
kotegsom [21]

Answer:

Q = 1057.5 [cal]

Explanation:

In order to solve this problem, we must use the following equation of thermal energy.

Q=m*C_{p}*(T_{final}-T_{initial})

where:

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Now replacing:

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5 0
2 years ago
A cylinder of compressed gas has a pressure of 488.2 kPa. The next day the cylinder of gas has a
Luda [366]

Answer:

20 °C

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Since n, R, and V are constant:

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488.2 kPa / T = 468 kPa / 281.15 K

T = 293.29 K

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Rounded, the temperature was 20 °C.

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