The increase in the average kinetic energy of the ball causes the increase in the temperature of the ball.
Kinetic energy of a particle is directly proportional to its temperature.
A ball initially at rest acquires kinetic energy when an external force is applied to it. As the person strikes the ball with a bat, the ball gains momentum which increases its kinetic energy of the ball.
Temperature on the other hand, is the measure of the average kinetic energy of a particle. Consequently, as the kinetic energy of the ball increases, the temperature of the ball increases as well.
Thus, we can conclude that the increase in the average kinetic energy of the ball causes the increase in the temperature of the ball.
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Answer:
Explanation:
The energy lost by the handle in lowering is equal to the energy gained by the car in raising the height.
As the mass of car is much more as compared to the jack, so the height raised by the car is very small as compared to the handle of jack.
The movement of electric charge
The power is calculated using the following rule:
Power = voltage * current
We are given that:
power = 10 watts
voltage = 3 volts
Substitute with the givens in the above equation to get the value of the current as follows:
P = V*I
10 = 3*I
current (I) = 10/3 amperes
Answer:
Resistance, R = 13 ohms
Explanation:
The Ohm's law gives the direct relationship between the voltage, current and the resistance of the device. The relation is as follows :

Where
I is the current
r is the resistance
The value of resistance is given by :

According to given data,
Voltage of the circuit, V = 130 V
Current rating of the circuit, I = 10 A
Resistance of the device,

R = 13 ohms
So, the resistance of the device is 13 ohms. Hence, this is the required solution.