Answer: If both gases undergo the same entropy then more heat is added to gas a because the entropy of the gas a is less than the entropy of the gas b.
Explanation:
Entropy is defined as the degree of randomness. When the temperature of the gas increases then the entropy of gas also increases.
In the given problem, Quantity a of an ideal gas is at absolute temperature t, and a second quantity b of the same gas is at absolute temperature 2t.
Heat is added to each gas, and both gases are allowed to expand isothermally. It means that the volume is constant during this process.
If both gases undergo the same entropy then more heat is added to gas a because the entropy of the gas a is less than the entropy of the gas b. If the heat is added then there will be more entropy.
Answer:
E. 1 x 10⁴ N
Explanation:
First we will calculate the final velocity of man when he hits the air bag. For that we apply third equation of motion to the motion from the top of building to air bags:
2as = Vf² - Vi²
where,
a = acceleration due to gravity = g = 9.8 m/s²
s = height = h 125 m
Vf = Final Speed = ?
Vi = Initial Speed = 0 m/s
Therefore,
2(9.8 m/s²)(125 m) = Vf² - (0 m/s)²
Vf = √(2450 m²/s²)
Vf = 49.5 m/s
Now, we apply the 3rd equation of motion to the decelerating motion of air bag:
2as = Vf² - Vi²
where,
a = ?
s = 5 m
Vf = 0 m/s
Vi = 49.5 m/s
Therefore,
2(a)(5 m) = (0 m/s)² - (49.5 m/s)²
a = (-2450 m²/s²)/(10 m)
a = -245 m/s²
negative sign for deceleration
a = 245 m/s²
Using Newton's Second Law of Motion:
F = ma
where,
F = Average force Applied by Air bags
m = mass of man = 70 kg
a = deceleration = 245 m/s²
Therefore,
F = (70 kg)(245 m/s²)
F = 1.7 x 10⁴ N
So, the correct option is:
<u>E. 1 x 10⁴ N</u>
Explanation:
Classical Thermodynamics studies the relationships between the State functions of the system: i.e. Pressure, Temperature, Volume, Energy, Entropy etc. In classical thermodynamics we pretend that we don’t know anything about the microscopic constituents (atoms) of our thermodynamic system. We do not talk about concepts like microstates, or ensemble averages, since such concepts require a more fine-grained perspective of the universe.
Statistical Thermodynamics explores how particular microscopic elements of the structures can be statistically related to the functions of the state. Depending on the limit in which we are, these microscopic elements can be either classically or mechanically quantified. In the end, nearly all statistical thermodynamics are derived by summing up the microscopic properties to derive equations for the functions of the macroscopic state.
Answer:
That is because light travels much faster than sound waves. … It takes approximately 5 seconds for the sound to travel 1 mile.
Explanation:
If the thunder follows the lightning almost instantly, you know the lightning is too close for comfort.
1. <span>the low pressure is moving slower than expected.
This make the meteorologist receive premature data which make them fail to interpret the data correctly and make the wronf prediction.
2. Sudden change in wind direction, which transfer the natural occurence into other region than where it initially predicted
3. We still haven't developed the methodology to 100% predict natural occurence</span>