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pychu [463]
3 years ago
8

Nonmetals are excellent conductors of heat and electricity.

Physics
2 answers:
Anettt [7]3 years ago
7 0

FALSE!

Nonmetals include common gasses that are found in the atmosphere, such as nitrogen and oxygen, as well as sulfur (S) and carbon too. <em>Nonmetals are usually not good conductors of heat and electricity.</em>

coldgirl [10]3 years ago
4 0
Wrongggggggggggggggggggg
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The efficiency of a machine is always less than 100% because part of the energy input is used to
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Answer:

C. Overcome Friction

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3 years ago
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marusya05 [52]

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3 0
1 year ago
An engine absorbs 1749 J from a hot reservoir and expels 539 J to a cold reservoir in each cycle. a. What is the engine’s effici
Masja [62]

Answer:

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Explanation:

Given that

Q₁ = 1749 J

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Q₁   = Q₂ +W

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Q₁ =heat absorb by hot  reservoir

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W= 1210 J

The efficiency given as

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P=\dfrac{1210}{0.305}\ W

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