Brake shoes converts the cars kinetic energy to heat

Reference no: EM13660858

When a driver brakes an automobile, the friction among brake drums and brake shoes converts the car’s kinetic energy to heat. If a 1481 kg automobile traveling at 31 m/s comes to a halt, how much does the temperature rise in all of the four 3.8 kg iron brake drums? The specific heat of iron is 448 J/kg · ? C.

Reference no: EM13660858

Questions Cloud

Estimate the width of the beam when it reaches the moon : A laser beam passes during a slit of width1.0 cm and is pointed at the Moon, which is approximately380,000 {\rm km} from the Earth. Suppose the laser emits waves of wavelength 630 {\rm nm} (the red light of a He-Ne laser).

Two converging lenses-both graphically and algebraically : Two converging lenses, each having a focal length equal to 10 cm, are 15cm apart. Discover the final image location for an object 15 cm from one of the lenses and 30 cm from the other. Do this both graphically and algebraically.

Why are government programs seldom terminated : Why are government programs seldom terminated? Provide at least three reasons in your response.

Thermo pane window consists of two glass panes : A Thermo pane window consists of two glass panes, all 0.32 cm thick, with a sealed layer of air of thickness 0.7 cm among them. If the inside surface temperature is 18? Cand the outside surface temperature is 1?

Brake shoes converts the cars kinetic energy to heat : When a driver brakes an automobile, the friction among brake drums and brake shoes converts the car’s kinetic energy to heat. If a 1481 kg automobile traveling at 31 m/s comes to a halt, how much does the temperature rise in all of the four 3.8 kg ir..

How congress works and how a bill is passed : How Congress works and how a bill is passed

Vantage point very close to the track at a stock car race : From a vantage point very close to the track at a stock car race, you hear the sound emitted with a moving car. You detect a frequency that is 0.908 times as small as the frequency emitted with the car when it is stationary. The speed of sound is 343..

Describe why the temperature of a gas increase : The Earth cools off a night more quickly when the weather is clear than when it is cloudy, why? Describe why the temperature of a gas increase when it is adiabatically compressed.

Why does water in a metal canteen stay cooler : Why does water in a metal canteen stay cooler if the cloth jacket surrounding the canteen is kept moist? Does an ordinary electric fan cool the air? why or why not?.if not why utilize it?

User Account

All Pages