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shepuryov [24]
3 years ago
13

Please help fast

Engineering
1 answer:
Vitek1552 [10]3 years ago
4 0
The balloon could not rise. The air inside would not be an lighters than the air
outside.
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Explanation:

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3 years ago
A mass weighing 22 lb stretches a spring 4.5 in. The mass is also attached to a damper with Y coefficient . Determine the value
Dominik [7]

Answer:

Cc= 12.7 lb.sec/ft

Explanation:

Given that

m = 22 lb

g= 32 ft/s²

m = \dfrac{22}{32}=0.6875\ s^2/ft

x= 4.5 in

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x= 0.375 ft

Spring constant ,K

K=\dfrac{m}{x}=\dfrac{22}{0.375}

K= 58.66  lb/ft

The damper coefficient for critically damped system

C_c=2\sqrt{mK}

C_c=2\sqrt{0.6875\times 58.66}

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5 0
3 years ago
The mathematical relationship between
11Alexandr11 [23.1K]
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3 years ago
Air flows through a 0.25-m-diameter duct. At the inlet the velocity is 300 m/s, and the stagnation temperature is 90°C. If the M
Naddika [18.5K]

Answer:

a. 318.2k

b. 45.2kj

Explanation:

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See attachment for detailed analysis

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Ben İngiliz oldum düzelte bilirmiyim
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Answer:

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