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Stolb23 [73]
3 years ago
11

một động cơ nhiệt khi hoạt động nhiệt lượng mà nó nhận vào gấp bốn lần công mà nó thực hiện. Hiệu suất của động cơ là?

Physics
1 answer:
OlgaM077 [116]3 years ago
6 0

\frac{1}{4}  = 0.25 = 25\%

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