The 400 W fan did 4 kJ work. How long did it work?
| May 29, 2021 | education
Given:
P = 400 W
A = 4 kJ = 4000 J
To find:
t -?
Decision:
1) P = A / t
2) t = A / p
3) t = 4000 J / 400 W
t = 10 s
Answer: 10 seconds
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