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kykrilka [37]
3 years ago
7

What Thermal efficiency

Engineering
2 answers:
siniylev [52]3 years ago
5 0
Of a heat heat engine is the percentage of heat energy that is transformed into work. i’m not sure what your question is tho
aalyn [17]3 years ago
5 0

Explanation:

Thermal efficiency of heat engine is the percentage of heat energy that is transformed in to work

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Solid Isomorphous alloys strength
Sphinxa [80]

Answer:

Explanation:

ℎ

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3 years ago
Note that common skills are listed toward the top, and less common skills are listed toward the bottom.
Sladkaya [172]

Answer:

BDEG

Explanation:

got it right on the test on edge because i used my b r a i n

5 0
3 years ago
If the load parameters are: Vln=600kV, Il=100A (resistive), calculate the source voltage and current when the line is 50Miles (s
Archy [21]

s 0Miles (short), 150 Miles(medium), and 300 Miles (long).

Explanation:

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3 years ago
Windmills slow the air and cause it to fill a larger channel as it passes through the blades. Consider a circular windmill with
Scilla [17]

Answer:

DIAMETER  = 9.797 m

POWER = \dot W = 28.6 kW

Explanation:

Given data:

circular windmill diamter D1 = 8m

v1 = 12 m/s

wind speed = 8 m/s

we know that specific volume is given as

v =\frac{RT}{P}

  where v is specific volume of air

considering air pressure is 100 kPa and temperature 20 degree celcius

v =  \frac{0.287\times 293}{100}

v = 0.8409 m^3/ kg

from continuity equation

A_1 V_1 = A_2 V_2

\frac{\pi}{4}D_1^2 V_1 = \frac{\pi}{4}D_1^2 V_2

D_2 = D_1 \sqrt{\frac{V_1}{V_2}}

D_2 = 8 \times \sqrt{\frac{12}{8}}

D_2 = 9.797 m

mass flow rate is given as

\dot m = \frac{A_1 V_1}{v} = \frac{\pi 8^2\times 12}{4\times 0.8049}

\dot m = 717.309 kg/s

the power produced \dot W = \dot m \frac{ V_1^2 - V_2^2}{2} = 717.3009 [\frac{12^2 - 8^2}{2} \times \frac{1 kJ/kg}{1000 m^2/s^2}]

\dot W = 28.6 kW

8 0
3 years ago
Select the statement that is false.
ra1l [238]

Answer:

D

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the way vertices are connected may be different so having same number of edges do not mean that total degree will also be same.

8 0
3 years ago
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