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Degger [83]
3 years ago
13

A 0.4-W cylindrical electronic component with diameter 0.3 cm and length 1.8 cm and mounted on a circuit board is cooled by air

flowing across it at a velocity of 240 m/min. If the air temperature is 35°C, determine the surface temperature of the component. For air properties evaluations, assume a film temperature of 50°C. Is this a good assumption?

Engineering
1 answer:
Katyanochek1 [597]3 years ago
7 0

Answer:

The surface temperature of the component 54.6 degrees celsius.

Explanation:

Please see attachment.

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Refer to the following distribution of commissions:Monthly Commissions Class Frequencies$600 up to $800 3800 up to 1,000 71,000
erica [24]

Answer:

21.81 %

Explanation:

given,

$600 up to $800        3

800 up to 1,000           7

$1,000 up to $1,200    11

$1,200 up to $1,400    12

$1,400 up to $1,600    40

$1,600 up to $1,800    24

$1,800 up to $2,000     9

$2,000 up to $2,200    4

                                                   

Total = 3 + 7 + 11 + 12 + 40 + 24 + 9 + 4 = 110

the frequency of $1,600 to $1800

 = \dfrac{24}{110}

 =21.81 %

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4 years ago
3. A competency-based training program is
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C and B is the answer of the questions
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. What is the combined thrust if both stages are used to launch the rocket?
Rudiy27

Answer:

340 mph

Explanation:

3 0
3 years ago
Read 2 more answers
Consider a simple ideal Rankine cycle with fixed boiler and condenser pressures. If the steam is superheated to a higher tempera
Usimov [2.4K]

Answer:

Option D - the moisture content at turbine exit will decrease

Explanation:

In an ideal rankine system, the phenomenon of superheating occurs at a state where the vapor state of the fluid is heated above its saturation temperature and the phase of the fluid is changed from the vapor phase to the gaseous phase.

Now, a vapour phase has two different substances at room temperature, whereas a gas phase consists of just a single substance at a defined thermodynamic range, at standard room temperature.

At the turbine exit, since it's just a single substance in gaseous phase, it means it will have less moisture content.

Thus, the correct answer is;the moisture content at turbine exit will decrease

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3 years ago
A insulated vessel s has two compartments separated by a membreane. On one side is 1kg of steam at 400 degC and 200 bar. The oth
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Answer:

See explaination

Explanation:

See attachment for the detailed step by step solution of the given problem.

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