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SIZIF [17.4K]
3 years ago
7

Why are earbud wires for an mp3 player coated with plastic

Physics
2 answers:
andriy [413]3 years ago
7 0
The naked wires are dangerous, so the plastic coating insulates and protects the wires :)
saw5 [17]3 years ago
6 0

2) they add the insulation to better the durability or the earbuds

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If the engine receives 6.45 kJ of heat energy from the reservoir at 520 K in each cycle, how many joules per cycle does it rejec
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Answer:

3.72 kJ

Explanation:

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By use of Carnot's theorem

Qc / QH = Tc / TH

Qc / 6.45 = 300 / 520

Qc = 3.72 kJ

6 0
3 years ago
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