Physics, 08.10.2019 01:30 nataliem02

Consider two small masses of air, both at a pressure of 1000 mb. one mass is on the beach in costa rica (lucky air mass) and the other is on a glacier in greenland ( which mass has the higher density?

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Answer from: narnia85

the air density in Costa Rica is less than the air density in Greenland

Explanation:

Analyze this case give us information about air that in the first approximation we can consider it an ideal gas, so we can use the equation

PV = nRT

Where P is the pressure is the volume, n the number of moles, T the absolute temperature

They ask us to calculate the density with formula

d = m / V

Of the first equation

n / V = (P / R) 1 / T (1)

The number of moles is directly related to the mass of the gas, therefore the ratio of the left (n / V) is proportional to the density of the gas

Let's analyze there are several constant quantities, the pressure. The area of Costa Rica is close to the Earth's equator, so it has a high temperature (T1). The part of Greenland is near the Arctic circle cooler zone (T2). Therefore the temperature of Costa Ricacha is much higher than that of Greenland (T1 >> T2)

In equation 1 we see that as the density is inversely proportional to the temperature, therefore the air density in Costa Rica is less than the air density in Greenland

Answer from: Quest

with the invention of the automobile, the woman of the house could drive to the store and get groceries. women were also free to socialize more. during world war ii women were allowed to work in factories to the war effort and could drive to work or ride mass transit buses to their jobs.

Answer from: Quest

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

hope this ! this is not copied! search it up, it's free of plagiarism!

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Consider two small masses of air, both at a pressure of 1000 mb. one mass is on the beach in costa r...

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