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3 years ago

What would be the y-component of a velocity vector that had a

Physics

1 answer:

valentina_108 [34]3 years ago

6 0

Answer:

18.5 m/s

Explanation:

Just did it on EdPuzzle

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30.

mrs_skeptik [129]

I think the answer is B but i could be wrong

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2 years ago

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A 1.78-m3 rigid tank contains steam at 220°C. One-third of the volume is in the liquid phase and the rest is in the vapor form.

mafiozo [28]

Answer:

a) P = 2319.6[kPa]; b) 2.6%

Explanation:

Since the problem data is not complete, the following information is entered:

A 1.78-m3 rigid tank contains steam at 220°C. One-third of the volume is in the liquid phase and the rest is in the vapor form. Determine (a) the pressure of the steam, and (b) the quality of the saturated mixture.

From the information provided in the problem we can say that you have a mixture of liquid and steam.

a) Using the steam tables we can see (attached image) that the saturation pressure at 220 °C is equal to:

$P_{sat} =2319.6[kPa]$

$v_{f}=0.001190[m^{3}/hr]\\v_{g}=0.08609[m^{3}/hr]\\$

b) Since the specific volume of the gas and liquid is known, we can find the mass of each phase using the following equation:

$m_{f}=\frac{V_{f} }{v_{f} } \\m_{g}=\frac{V_{g} }{v_{g} } \\where:\\V_{f}=volume of the fluid[m^3]\\v_{f}=specific volume of the fluid [m^3/kg]\\$

We know that the volume of the fluid is equal to:

$V_{f}=1/3*V_{total} \\V_{total}=1.78[m^3]\\$

Now we can find the mass of the gas and the liquid.

$m_{f}=\frac{1/3*1.78}{0.001190} \\m_{f}=498.6[kg]\\m_{g}=\frac{2/3*1.78}{0.08609}\\m_{g}=\ 13.78[kg]$

The total mass is the sum of both

$m_{total} =m_{g} + m_{fluid} \\m_{total} = 498.6 + 13.78\\m_{total} = 512.38[kg]$

The quality will be equal to:

$x = \frac{m_{g} }{m_{T} }\\ x= \frac{13.78}{512.38} \\x = 0.026 = 2.6%$

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3 years ago

You are standing 1 meter from a squawking parrot. If you move to a distance three meters away, the sound

spayn [35]

Use the inverse square law, thus if you move a distance of 3m away, the sound intensity decrease by 1/3^2= 1/9

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3 years ago

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What is power? Question options: Power is the ability to do work. Power is the rate at which work is done. Power is the amount o

nika2105 [10]

Power in physics is work done over time. So the answer is Power is the rate at which work is done.

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3 years ago

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Why would a person who weighs 100 lbs. on Earth weigh significantly more on Ju-piter?

Nitella [24]

Answer:

Is a

Explanation:

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2 years ago