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Answer:
C. More of the heat is transferred to the kinetic energy of the copper atoms than to the kinetic energy of the water molecules.
Explanation:
Both equal masses of water and copper were heated at the same temperature. Since copper is a good conductor of heat compared to water, its absorbs more heat. Which in-turn increases the rate of vibrations of the atoms in the copper mass, thus increasing their kinetic energy.
In the case of water, its molecules displaces one another after being heated to a higher temperature compared to neighboring molecules. So that the heated molecule becomes less dense and floats to the surface of water.
This property of copper makes it to be heated to a higher final temperature than the water.
Answer:
The dimension of power is energy divided by the time or ![[ML^2T^-3]](https://tex.z-dn.net/?f=%5BML%5E2T%5E-3%5D)
Explanation:
Power =
We can derive Dimensions of Power from both formula.
Power = Force * Velocity
As,
Force = mass * acceleration
Therefore, Dimensions of
Force = ![[M]*[LT^-2] = [MLT^-2]](https://tex.z-dn.net/?f=%5BM%5D%2A%5BLT%5E-2%5D%20%3D%20%5BMLT%5E-2%5D)
Since,
Velocity = 
Now, Dimension of
Velocity = ![[LT^-1]](https://tex.z-dn.net/?f=%5BLT%5E-1%5D)
We have Both Dimensions,Now we can derive Dimensions Of Power,
Power = Force * Velocity
Power =![[MLT^-2] * [LT^-1]](https://tex.z-dn.net/?f=%5BMLT%5E-2%5D%20%2A%20%5BLT%5E-1%5D)
Power =
