A 25,000-kg subway train initially traveling at 16.0 m/s slows to a stop in a station and then stays there long enough for its brakes to cool. The station's dimensions are 60.0 m long by 18.0 m wide by 10.0 m high. Assuming all the work done by the brakes in stopping the train is transferred as heat uniformly to all the air in the station, by how much does the air temperature in the station rise? Take the density of the air to be 1.20 kg/m and its specific heat to be 1020 J/kg · K.

A 25,000-kg subway train initially traveling at 16.0 m/s slows to a stop in a station and then stays there long enough for its brakes to cool. The station's dimensions are 60.0 m long by 18.0 m wide by 10.0 m high. Assuming all the work done by the brakes in stopping the train is transferred as heat uniformly to all the air in the station, by how much does the air temperature in the station rise? Take the density of the air to be 1.20 kg/m and its specific heat to be 1020 J/kg · K.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter11: Energy In Thermal Processes

Section: Chapter Questions

Problem 12P: A 1.5-kg copper block is given an initial speed of 3.0 m/s on a rough horizontal surface. Because of...

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