Can some one help me with this science quiz
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Ответ:
Yield of second machine / Yield of first machine = 0.75
Explanation:
Given:
Input of first machine = 450 J
Output of first machine = 300 J
Input of second machine = 600 J
Output of second machine = 450 J
Find:
Yield of second machine / Yield of first machine
Computation:
Yield of first machine = [Q1 - Q2] / Q1
Yield of first machine = [450 - 300] / 450
Yield of first machine = 1 / 3
Yield of second machine = [Q1 - Q2] / Q1
Yield of second machine = [600 - 450] / 600
Yield of second machine = 1 / 4
Yield of second machine / Yield of first machine = [1/4]/[1/3]
Yield of second machine / Yield of first machine = 3/4
Yield of second machine / Yield of first machine = 0.75