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garri49 [273]
2 years ago
14

Part 1

Physics
1 answer:
wel2 years ago
4 0

Answer:

Part 1: 0.3789

Part 2: 746 J

Part 3: 2.162 kW

Explanation:

Part 1:

Eff=  1-\frac{1223}{1969}

Eff= 0.378873 ≈ 0/3789

Part 2:

W= 0.3789(1969)

W= 746 J

Part 3:

Power=\frac{W}{t}

Power= \frac{746}{0.345}

Power= 2162.3188 Watts

2162.3188 W-----> 2.162 kW

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