Show that the efficiency of a machine that has an input of 100 J and an output of 40 J is 0.40

Name: Problem 49, Chapter 3: Conceptual Physical Science
Uploaded: 2019-08-30T02:49:50-08:00
Duration: 38 s
Channel: Jayashree Behera
Description: Show that the efficiency of a machine that has an input of 100 J and an output of 40 J is 0.40.

Question

Show that the efficiency of a machine that has an input of 100  J and an output of 40  J is 0.40

Jayashree Behera · Accepted Answer

step 1 So efficiency as the problem says is given by the useful energy output or the output energy over

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