Use the table to answer the question.
Machine Output Work (J) Input Work (J)
A 750 1,500
B 1,000 4,000
C 450 600
D 3,000 5,000
Which machine has the highest efficiency?
(1 point)
Responses
machine C
machine C
machine D
machine D
machine A
machine A
machine B
machine B
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To find the machine with the highest efficiency, we need to calculate the efficiency of each machine by dividing the output work by the input work and multiplying by 100 to get a percentage. Let's calculate the efficiency for each machine:
- Machine A: Efficiency = (750/1500) * 100 = 50%
- Machine B: Efficiency = (1000/4000) * 100 = 25%
- Machine C: Efficiency = (450/600) * 100 = 75%
- Machine D: Efficiency = (3000/5000) * 100 = 60%
From the calculations, we can see that Machine C has the highest efficiency with a value of 75%. Therefore, the correct answer is machine C.