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katrin [286]
2 years ago
14

When air gets hot, it rises and forms…

Physics
1 answer:
NeTakaya2 years ago
5 0

Answer:

Gas

Explanation:

Hot air rises because gases expand as they heat up. When air heats up and expands, its density also decreases.

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Thomas Newcomen was the first to produce a working steam engine. Why is the work of James Watt more widely known than the work o
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Answer:

The steam engine of James watt is more efficient than Newcomen ans more suitable for the industrial revolution.

Explanation:

James Watt is more widely know for working steam engine because Watt has created better engine which is suitable for the industrial revolution. The steam engine of James watt is more efficient than Newcomen. Watt developed the condensing arrangement by using piston which lessen the initial pressure leading to effectively worked than Newcomen's

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3 years ago
Plants make energy. Some of it they use to preform the necessary functions of living. What do they do with the excess energy?
Maksim231197 [3]

Answer:

They can use it for when they are dormant in the winter or to grow more sources for storing and creating energy, or they store the energy (this energy would be considered stored energy).

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3 years ago
A 10 N force and a 15 N force are acting from a single point in opposite directions. What additional force must be added to prod
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Answer:

5 N acting in the same direction as the 10 N force

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7 0
3 years ago
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guapka [62]
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Sergio [31]
The correct answer is (b.) y/x hertz. That is because the formula to get the frequency is f =  v / w. The following values (v=y meters / second; wavelength = x meters) must be substituted to the equation, which leaves you y/x hertz.
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3 years ago
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