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ira [324]
2 years ago
15

A city emergency management agency and a construction company have formed a public-private partnership. The construction company

has provided the city with heavy machinery for hurricane and storm clean-up efforts over the years. However, the city does not know the full extent of machinery available to them in an emergency. How could this partnership be more successful? A. The partnership can devote a full-time staff member to the partnership
B. The partners can form a database of resources from the construction company available for the city
C. The construction company can devote some machinery only for use in emergencies
D. The city can ask additional construction companies to join the partnership
Engineering
1 answer:
Goryan [66]2 years ago
4 0

Answer:

B

Explanation:

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Answer:

h = 10,349.06 W/m^2 K

Explanation:

Given data:

Inner diameter = 3.0 cm

flow rate  = 2 L/s

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2\times 10^{-3} m^3 = \frac{\pi}{4} \times (3\times 10^{-2})^2 \times velocity

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at 30 degree celcius = \mu = 0.798\times 10^{-3}Pa-s , K  = 0.6154

Re = \frac{10^3\times 2.83\times 3\times 10^{-2}}{0.798\times 10^{-3}}

Re = 106390

So ,this is turbulent flow

Nu = \frac{hL}{k} = 0.0029\times Re^{0.8}\times Pr^{0.3}

Pr= \frac{\mu Cp}{K} = \frac{0.798\times 10^{-3} \times 4180}{0.615} = 5.419

\frac{h\times 0.03}{0.615}  = 0.0029\times (1.061\times 10^5)^{0.8}\times 5.419^{0.3}

SOLVING FOR H

WE GET

h = 10,349.06 W/m^2 K

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Answer:

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8 0
2 years ago
An adiabatic gas turbine expands air at 1300 kPa and 500◦C to 100 kPa and 127◦C. Air enters the turbine through a 0.2-m2 opening
Viktor [21]

Given:

Pressure, P_{1} = 1300 kPa

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velocity, v = 40 m/s

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For air propertiess at

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3 years ago
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