Choose heated air or cooled air for the following atmospheric property term: rises
1 answer:
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Answer:
A. 1.73 x 10^5 J
Explanation:
The internal energy of a gas is related to the average speed of the molecules of the gas. In fact:
- The internal energy, U, is directly proportional to the temperature of the gas, T, according to
- The temperature of the gas, T, is proportional to the square of the average speed of the molecules, v, according to
where both terms represent the average kinetic energy of the molecules.
- Therefore, we can conclude that the higher the internal energy, the faster the average speed of the molecules: among the choices given, the sample with highest internal energy is sample A.
Answer:
The intensity of the light transmitted through the third filter is
Explanation:
From the question we are told
The intensity of the unpolarised light
The angle between the first and second polarizer is
The angle between the first and third polarizer is
Generally the intensity of light emerging from the first polarizer is mathematically represented as
According to Malus law the intensity of light emerging from the second polarizer is mathematically represented as
Substituting for and
According to Malus law the intensity of light emerging from the third polarizer is mathematically represented as
Substituting for and