A steel drill with a mass of 10 g heated up from 15 to 115 degrees during operation.
| March 2, 2021 | education
A steel drill with a mass of 10 g heated up from 15 to 115 degrees during operation. How much energy was wasted by the motor in heating the drill?
Initial data: m (weight of the steel drill) = 10 g (0.01 kg); t0 (initial temperature of the drill) = 15 ºС; t (final temperature) = 115 ºС.
Reference values: Сс (specific heat capacity of steel) = 500 J / (kg * ºС).
The energy consumed by the engine to heat the steel drill is determined by the formula: Q = Cc * m * (t – t0).
Calculation: Q = 500 * 0.01 * (115 – 15) = 500 J.
Answer: The motor used 500 Joules of energy to heat the steel drill.
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