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Nana76 [90]
3 years ago
5

A pulley system has an efficiency of 74.2%. If you perform 200 J of work, how

Physics
1 answer:
Fudgin [204]3 years ago
8 0

Answer:

C

Explanation:

If a pulley system has an efficiency of 74.2%, then only that fraction of the work performed will be useful. 74.2%=0.742. 0.742*200 is about 148J. Hope this helps!

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What is the fundamental frequency (in Hz) of a 0.632 m long tube, open at both ends, on a day when the speed of sound is 344 m/s
Greeley [361]

Answer:

f=272.15Hz

Explanation:

Given data

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Solution

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4 0
4 years ago
Which of the following is most closely related to an activated complex?
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3 years ago
An alternator provides 20 A of peak current at 100 V peak AC to a resistive electric heater. How much heating power is delivered
Liono4ka [1.6K]

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6 0
4 years ago
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