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3 years ago

7

A guitar string 0.750 m long has a fundamental frequency of 440 hz. The guitarist wants to accent the 5th harmonic by picking at

the first loop from the end of the string for this harmonic. How far from the end of the string (cm) should she pick?

1 answer:

weeeeeb [17]3 years ago

7 0

Answer: a b c or d

Explanation

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4 years ago

A real heat engine operates between temperatures TcTcT_c and ThThT_h. During a certain time, an amount QcQcQ_c of heat is releas

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The maximum amount of work performed is

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The efficiency of a real heat engine is given by the equation:

$\eta = 1-\frac{T_C}{T_H}$ (1)

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However, the efficiency of a real heat engine can be also written as:

$\eta = \frac{W_{max}}{Q_H}$

where

$W_{max}$ is the maximum work done

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$Q_H$ can be written as

$Q_H=W_{max}+Q_C$

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$W_{max}=\frac{T_H-T_C}{T_C}Q_C$

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3 years ago