treyway3169 treyway3169

Today at 10:03 PM
Physics

Answered

You have designed a machine that requires 1000 J of work from a motor for every 800 J of useful work done by the machine. What is the efficiency of the machine?

Answer :

himaruanuk himaruanuk

Today at 10:09 PM

Answer:

80%

Explanation:

[tex]efficiency = \frac{useful \: work \: done}{total \: energy \: input} [/tex]

800 / 1000 = 0.8

Efficiency = 0.8 *100 = 80%

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