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2 years ago

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A helium weather balloon is filled to a volume of 219 m3 on the ground, where the pressure is 754 torr and the temperature is 29

8 K. As the balloon rises, the pressure and temperature decrease, so it is important to know how much the gas will expand to ensure that the balloon can uphold the expansion. What is the volume at an altitude of 10,000 m, where the atmospheric pressure is 210. torr and the temperature is 230 K?

1 answer:

Novosadov [1.4K]2 years ago

8 0

Answer:

$V_2 = 606.9 m^3$

Explanation:

By ideal gas equation law we know that

PV = nRT

now we know that when balloon rises to certain level then the number of moles will remains same

so we can say

$n_1 = n_2$

$\frac{P_1V_1}{RT_1} = \frac{P_2V_2}{RT_2}$

now plug in all data to find the final volume of the balloon

$\frac{754\times 219}{R(298)} = \frac{210 \times V_2}{R(230)}$

$V_2 = \frac{230\times 754 \times 219}{210 \times 298}$

$V_2 = 606.9 m^3$

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3 years ago

Read 2 more answers

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Answer:

$\frac{F}{W} = 9.37 \times 10^{-4}$

Explanation:

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$r = 12.0 \mu m$

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Now electric force on the pollen is given

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2 years ago

A jetliner, traveling northward, is landing with a speed of 71.9 m/s. Once the jet touches down, it has 675 m of runway in which

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Answer:

The value is $a = -3.7 \ m/s^2$

Explanation:

From the question we are told that

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The velocity it is reduced to is $v = 11.3 \ m/s$

Generally the average acceleration is mathematically represented as

$a = \frac{ v^2 - u^2 }{ 2 * d }$

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3 years ago

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Given:
ρ = 13.6 x 10³ kg/m³, density of mercury
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Let V = the volume of the sample.
Then
W = ρVg
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V = W/(ρg)
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2 years ago

For the strongest electromagnet, what wire gauge should be used?

alexandr1967 [171]

Answer:

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Hope this helped. Have a blessed day !

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2 years ago