Answer:
cheetah goes 52.2 m in that time.
Explanation:
<u>Answer </u>
A. that the initial gravitational potential energy of the masses transformed into kinetic energy of the paddles and then to thermal energy in the water
<u>Explanation</u>
James Joule allowed some water to fall from a height of 1 foot. the water would turn a paddle wheel at the bottom causing a temperature of water to raise.
The height form which the water fell, mass and the temperature of water was measured and used to calculate mechanical equivalent of heat.
From the choices given the best answer is A. that the initial gravitational potential energy of the masses transformed into kinetic energy of the paddles and then to thermal energy in the water.
Yes, it is diffusion !
Diffusion is the process in which gas, through random movement of particles, tends to fill up the whole volume of the container in which it is placed. So a similar process would lead the smoke, which is in form of gas (or light particles), to fill in the whole room in which it is contained.
Electric potential energy of a dipole is given as


so change in the potential energy is given by


here initially it was parallel to electric field while finally it is perpendicular to the electric field
so we have


so above is the change in potential energy of dipole
Answer:
The output power is 2 kW
Explanation:
It is given that,
Number of turns in primary coil, 
Number of turns in secondary coil, 
Voltage of primary coil, 
Current drawn from secondary coil, 
We need to find the power output. It is equal to the product of voltage and current. Firstly, we will find the voltage of secondary coil as :



So, the power output is :



or

So, the output power is 2 kW. Hence, this is the required solution.