Wednesday
April 16, 2014

Homework Help: science

Posted by ing-marie on Wednesday, May 8, 2013 at 9:42am.

a car of mass 100 kg traveling at 72 km/hr is brought to rest by applying the brakes.assuming that the kinetic energy of the car becomes transferred to internal energy in four steel brakes drum of equal mass, fine the rise in temperature of the drums if the total is 20kg, the specific heat capacity of the steal is 450 j/kg k and the work done equal on all four drums

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