If an object has 100 J of PE, how much work can it do (with that PE)?
1 answer:
Answer:
W = 100 J
Explanation:
The potential energy of an object is given by :
It is said to possessed by an object due to its position under the action of gravity.
The work done by an object is given by :
W = F×d , F is force and d is displacement
We know that, F = mg
So, if an object has 100 J of PE, it means that it can do the work of 100 J.
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The wavelength of infrared is from 700 nm to 1 mm. So, the lies in infrared region of the spectrum. Hence, this is the required solution.
Answer:
Gay-Lussac’s law, because as the pressure increases, the temperature increases
Explanation:
First of all, we can notice that the volume of the tank is fixed: this means that the volume of the air inside is also fixed.
This means that in this situation we can apply Gay-Lussac's law, which states that:
"for a gas kept at constant volume, the pressure of the gas is proportional to the absolute temperature of the gas".
Mathematically:
where p is the pressure in Pascal and T is the temperature in Kelvin.
In this case, the tank is filled with air: this means that the pressure of the gas inside the tank increases. And therefore, according to Gay-Lussac's law, the temperature will increase proportionally, and this explains why the tank gets hot.