What is the thermal efficiency of a heat engine if in one cycle the work output is 3000 J and the heat input is 10000 J ?

Explanation

To find the thermal efficiency of a heat engine, we can use the formula:

\[ \text{Thermal Efficiency} (\eta) = \frac{\text{Work Output}}{\text{Heat Input}} \]

Given:
- Work Output (W) = 3000 J
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