A) 350 J
- The initial internal energy of the cup is
- The final internal energy of the cup is
According to the first law of thermodynamics:
where
Q is the heat absorbed by the system
W is the work done on the system
The work done on the system in this case is 0, so we can rewrite the equation as
And so we find the heat transferred
B) IN the cup
Explanation:
in this situation, we see that the internal energy of the cup increases. The internal energy of an object/substance is proportional to its temperature, so it is a measure of the average kinetic energy of the molecules of the object/substance. Therefore, in this case, the temperature (and the energy of the molecules of the substance) has increased: this means that heat has been transferred INTO the system from the environment (the heat came from the sun).
A because if he was a leader he’d take the kick himself and they’re are not all working to kick the ball so it’s not teamwork and it’s not sportsmanship because he isn’t stopping a fight or fixing something between two teams
Since the runner only moved in one direction, his distance and placement are the same.
The distanced travelled/his displacement is 12 metres. :)
The right answer is. This kind of phase change--liquid<span> to </span>gas<span>--is </span>called<span> evaporation or vaporization. Water vapor can in </span>turn<span> be cooled to form </span>liquid<span> water. This kind of phase change--from</span>gas<span> to </span>liquid<span>--is referred to as condensation.</span>