3 years ago

Which type of heating system is often used to heat many buildings from a central location

1 answer:

3 0

Central heating is often used in cold climates to heat private houses and public buildings. Such a system contains boiler, furnace, heat pump to heat water, steam or air, all in a central location such as furnace room in a home or a mechanical room in a large building. The use of water as the heat transfer medium is known as hydronics.

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butalik [34]

Due to the moon's gravitational force and inertias counterbalance.

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Explain how you can work out the

Ne4ueva [31]

Answer:

The speed of light changes as it moves between media. This causes refraction. Angles of refraction can be calculated using known speeds or wavelengths. Beyond the critical angle, light is reflected.

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3 years ago

If the cart has potential energy of 5,000 J and kinetic energy of 2,750 J. How much mechanical energy does the cart have?

Dahasolnce [82]

Answer: 7750 J

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Mechanical energy is potential energy added to kinetic energy.

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Two people were pulling this thing with 560 Newton. Now they are using a rope with 50°. How much Newton would they need to pull

Brums [2.3K]

Answer:

10 N

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While many people would like to simply add the forces from each end to get a total force, this is fundamentally incorrect.

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NemiM [27]

Globular clusters are very tightly bound by gravity, which gives them their spherical shapes and relatively high stellar densities toward their centers. The name of this category of star cluster is derived from the Latin globulus—a small sphere.

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