Answer:
8000J
Explanation:
The kinetic energy of the car lost during breaking are converted to thermal energy and are gained by the brakes.
Kinetic energy loss by car = thermal energy gained by brakes.
∆K.E = ∆T.E ....1
The Kinetic energy loss by car can be expressed as;
∆K.E = K.E1 - K.E2
Initial K.E = K.E1 = 10000J
Final K.E = K.E2 = 2000J
∆K.E= 10000J - 2000J = 8000J
From equation 1,
∆K.E = ∆T.E
∆T.E = 8,000J
thermal energy gain by brakes = 8,000J
The moon does not have its own light.
We are asked in what manner can one make the motor run in reverse. One way to do so is to flip the magnet on the other side so that the opposite charge faces to the motor. The magnetic field induced by the magnet to the motor results to a reactive force opposite to the induced motion.
Its the second option if you have Suttons Bay Virtual Online School
Answer:
FALSE
Explanation:
The rotation of a planet is determined by the rotation of the initial mass that formed the planet.
The retrograde spin has nothing to do with the length of the solar day.
One reason why the rotation of Venus is slow may be due to the tidal lock and the sun's gravity. One solar day in Venus lasts 243 Earth days and it orbits the sun every 224.7 Earth days.
