b) Describe any change in the car's kinetic energy, if there is any.
c) During the stop sound is created and the tires become hot. Where did the energy for these actions come from? This is an example of what basic principle of science?
Short answers OK, you'll get 10 points.
THANKS!
A car is traveling at 30 mph on a level road when the brakes are applied to bring it to a screaching halt?
a) There is no change in potential energy unless the heat energy gained by the brakes and tires is regarded as potential energy. ( you could, say, whip off the brake discs and fry an egg on them. )
b) The Kinetic energy of the car is reduced to zero.
c) The KE is converted to heat energy by the brakes and tires. And a little bit of sound energy. The energy came from the KE that the car loses.
The basic principle illustrated is The Conservation of Energy - Energy cannot be created or destroyed. It can only be transferred or transformed.
To be absolutely correct that should read %26quot;The conservation of Mass/Energy %26quot; since mass and energy are interchangable - the same thing.
A car is traveling at 30 mph on a level road when the brakes are applied to bring it to a screaching halt?
a) momentum slows down
b) idk
c) conduction heat, thermal energy
a. potential (energy at rest) energy approaches maximum
b. kinetic (energy in motion) energy approaches minimum
c. the kinetic energy of the tires is converted into heat energy.
d. Principle of Science: Energy is neither created nor destroyed, it can only transformed from one form to another.
well, applying the brakes is kinectic energy because it is the action used to bringing it to the given speed.
and ummmm i know that the potential energy turned to thermal energy.
sorry i couldn't elaborate more!
p.s. pick me as the best answer :)
