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Aleksandr [31]
3 years ago
5

A boiler is designed to work at 14bar and evaporate 8 kg/s of water. The inlet water to the boiler has a temperature of 400C and

at exit the steam is 0.95 dry. The flow velocity at inlet is 10 m/s and at exit 5 m/s and the exit is % m above the elevation at entrance. Determine the quantity of heat required. What is the significance of changes in kinetic and potential energy on the result.
Engineering
1 answer:
bearhunter [10]3 years ago
7 0

Answer:

Explanation: 2 is thy answer

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Which of the following results from the fact that skip signals refracted from the ionosphere are elliptically polarized?
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Answer:

B

Explanation:

The fact that skip signals refracted from the ionosphere are elliptically polarized is a result of either vertically or horizontally polarized antennas may be used for transmission or reception.

8 0
3 years ago
A closed, 5-m-tall tank is filled with water to a depth of 4 m. The top portion of the tank is filled with air which, as indicat
Brums [2.3K]

Answer:

The pressure that the water exerts on the bottom of the tank is 59.2 kPa

Explanation:

Given;

height of tank, h = 5m

height of water in the tank, h_w = 4m

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The pressure exerted by water at the bottom of the tank is the sum of pressure on water surface and pressure due to water column.

P_{bottom} = \gamma h + P_{top}\\\\P_{bottom} = (9.8*10^3*4 \ \ + \ 20*10^3)Pa\\\\P_{bottom} = 59200 \ Pa\\\\P_{bottom} = 59.2 \ kPa

Therefore, the pressure that the water exerts on the bottom of the tank is 59.2 kPa

6 0
3 years ago
Now that we have a second enemy, you will need to make some changes to the script that is attached to your backdrop. Look at tha
JulsSmile [24]

Answer:

<u><em>≡</em></u>

Explanation:

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3 years ago
hi i am a teacher and i want to say to stop using brainly we strictly banned brainly but our students keep using it
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Then miss try to get your school to banned it for your district like forbid then from the web site then it will not allow them to use it. then sometimes use it to help other people who needs help like teachers do or we need help with something we dont know so we ask for help for a better understanding of it.

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Nikitich [7]

Answer:

D. Rectangular

Explanation:

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3 years ago
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