3 years ago

The process of hotter air rising and cooler air falling is called convection. What role does convection play in the atmosphere?

Physics

2 answers:

erastovalidia [21]3 years ago

7 0

Option B will be the right one !

aleksandr82 [10.1K]3 years ago

5 0

I agree option B will be the right one !

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A gas has an initial volume of 2.5 L at a temperature of 275 K and a pressure of 2.1 atm. The pressure of the gas increases to 2

olchik [2.2K]

Answer:

2.10L

Explanation:

Given data

V1= 2.5L

T1= 275K

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P2= 2.7 atm

T2= 298K

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Let us apply the gas equation

P1V1/T1= P2V2/T2

substitute into the expression we have

2.1*2.5/275= 2.7*V2/298

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An 80-cm-long steel string with a linear density of 1.0 g/m is under 200 N tension. It is plucked and vibrates at its fundamenta

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Answer:

Wavelength of the sound wave that reaches your ear is 1.15 m

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The required wavelength pf the sound wave that reaches the ear is( take velocity of air v=344 m/s)

$\lambda=\frac{v_{air}}{f} \\\lambda=\frac{344}{298.25} \\\lambda=1.15 m$

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