2 years ago

Los rieles de una vía de tren de acero tienen 1500 m de longitud. ¿Qué longitud tendrá cuando

Physics

1 answer:

melomori [17]2 years ago

6 0

Answer:

can you translate the question

into english

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Which action involves the most efficient conversion of electrical energy into thermal energy?

azamat

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the answer is option d

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A rope passes over a fixed sheave with both ends hanging straight down. The coefficient of friction between the rope and sheave

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Answer:3.51

Explanation:

Given

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Consider a small element at an angle \theta having an angle of $d\theta$

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and $T+dT-T=f=\mu Td\theta$

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$\int_{T_2}^{T_1}\frac{dT}{T}=\int_{0}^{\pi }\mu d\theta$

$\frac{T_2}{T_1}=e^{\mu \pi}$

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$\frac{T_2}{T_1}==e^{1.256}$

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3 years ago

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