A cross-country skier moves 32 meters westward, then 54
1 answer:
Explanation:
It is given that, a cross-country skier moves 32 meters westward, then 54 meters eastward, and finally 68 meters westward.
The attached figure shows the whole scenario. He starts walking 32 m west and finally it walks 68 m west.
Let west is negative and east is positive.
Displacement = final position - initial position
= -68 - (-32)
= -36 m
The magnitude of displacement is equal to 30 m westwards.
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The correct answer is
<span>C) either the pressure of the gas, the volume of the gas, or both, will increase.
In fact, the ideal gas law can be written as
</span>
<span>where
p is the gas pressure
V is its volume
n is the number of moles
R is the gas constant
T is the absolute temperature of the gas
We can see that if the temperature T increases, then the term on the right in the equation increases, therefore the term on the left should increase as well. In order for this to be possible, at least one between p and V should increase, or also both of them. Therefore, the correct answer is C.</span>
<span>C) either the pressure of the gas, the volume of the gas, or both, will increase.
In fact, the ideal gas law can be written as
</span>
<span>where
p is the gas pressure
V is its volume
n is the number of moles
R is the gas constant
T is the absolute temperature of the gas
We can see that if the temperature T increases, then the term on the right in the equation increases, therefore the term on the left should increase as well. In order for this to be possible, at least one between p and V should increase, or also both of them. Therefore, the correct answer is C.</span>