Yokka Stars

Task id9032

Task id9032

Seller: nerdmavr

Price: 0.10 USD

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Product description

A train traveling at a speed of 72 km/h is stopped using the brakes. How much would the air temperature in the cars rise if all the energy absorbed during braking went to heating this air? Car weight 20 tons, car volume 120 l3, air density 1.3 kg/m3, specific heat capacity of air 1000 J/kg • deg.

Additional information

Detailed solution. Format png