CAPE Physics Unit 1 · 2016 · Paper 1 · Question Q14
A rotating blade operating for 100\text{ seconds} generates a power of 8\text{ kW} to surrounding areas. If the input energy is 1.0 \times 10^6\text{ J}, what percentage of energy is lost as heat, assuming that no other energy transformations occur?
- (A)
0.8\% - (B)
2.0\% - (C)
20.0\% - (D)
80.0\%
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