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balu736 [363]
3 years ago
15

Can someone tell me if i got this write

Engineering
1 answer:
Katen [24]3 years ago
6 0

Answer:

yes you got it correct

Explanation:

hope you have a good day and stay positive ❤️

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BOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
sergejj [24]

Answer:

BOO

Explanation:

8 0
3 years ago
The closed tank of a fire engine is partly filled with water, the air space above being under pressure. A 6 cm bore connected to
skelet666 [1.2K]

Answer:

The air pressure in the tank is 53.9 kN/m^{2}

Solution:

As per the question:

Discharge rate, Q = 20 litres/ sec = 0.02\ m^{3}/s

(Since, 1 litre = 10^{-3} m^{3})

Diameter of the bore, d = 6 cm = 0.06 m

Head loss due to friction, H_{loss} = 45 cm = 0.45\ m

Height, h_{roof} = 2.5\ m

Now,

The velocity in the bore is given by:

v = \frac{Q}{\pi (\frac{d}{2})^{2}}

v = \frac{0.02}{\pi (\frac{0.06}{2})^{2}} = 7.07\ m/s

Now, using Bernoulli's eqn:

\frac{P}{\rho g} + \frac{v^{2}}{2g} + h = k                  (1)

The velocity head is given by:

\frac{v_{roof}^{2}}{2g} = \frac{7.07^{2}}{2\times 9.8} = 2.553

Now, by using energy conservation on the surface of water on the roof and that in the tank :

\frac{P_{tank}}{\rho g} + \frac{v_{tank}^{2}}{2g} + h_{tank} = \frac{P_{roof}}{\rho g} + \frac{v_{tank}^{2}}{2g} + h_{roof} + H_{loss}

\frac{P_{tank}}{\rho g} + 0 + 0 = \0 + 2.553 + 2.5 + 0.45

P_{tank} = 5.5\times \rho \times g

P_{tank} = 5.5\times 1\times 9.8 = 53.9\ kN/m^{2}

4 0
3 years ago
Which of the following is not an assumption for the Method of Joints?
fenix001 [56]

The option that is not an assumption for the Method of Joints is that

  • The truss is stable
  • Members are straight
  • Members are weightless

<h3>What is an assumption?</h3>

This is known to be people's believe in regard to a thing that is said  to be true or maybe probably true.

Note that The option that is not an assumption for the Method of Joints is that

  • The truss is stable
  • Members are straight
  • Members are weightless

Learn more about assumption from

brainly.com/question/2875871

#SPJ1

5 0
2 years ago
Which process must first take place in order for the proteins in foods to be used by body cells?
barxatty [35]

Answer:

Digestion

1 is correct since you need to eat something before anything else.

2 is incorrect since if this was first, what are you storing?

3 is incorrect since that is the second thing you need to do.

4 is incorrect since that is the last thing to do.

5 0
3 years ago
Gshyevdnmdcicm gngjc
Len [333]

This is not a valid question. Please try again.

4 0
3 years ago
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