1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Effectus [21]
3 years ago
8

A reservoir delivers water to a horizontal pipeline 39 long The first 15 m has a diameter of 50 mm, after which it suddenly beco

mes 75 mm. The outlet of the reservoir is sharp. The flow rate is 2,8 l/s to atmosphere. Take f=0,0048 for the 50 mm pipe and f=0,0058 for the 75 pipe. Determine the difference between the vater level in the reservoir and the outlet of the pipe.
Engineering
1 answer:
allsm [11]3 years ago
8 0

Answer:

The difference of head in the level of reservoir is 0.23 m.

Explanation:

For pipe 1

d_1=50 mm,f_1=0.0048

For pipe 2

d_2=75 mm,f_2=0.0058

Q=2.8 l/s

Q=2.8\times 10^{-3]

We know that Q=AV

Q=A_1V_1=A_2V_2

A_1=1.95\times 10^{-3}m^2

A_2=4.38\times 10^{-3} m^2

So V_2=0.63 m/s,V_1=1.43 m/s

head loss (h)

h=\dfrac{f_1L_1V_1^2}{2gd_1}+\dfrac{f_2L_2V_2^2}{2gd_2}+0.5\dfrac{V_1^2}{2g}

Now putting the all values

h=\dfrac{0.0048\times 15\times 1.43^2}{2\times 9.81\times 0.05}+\dfrac{0.0058\times 24\times 0.63^2}{2\times 9.81\times 0.075}+0.5\dfrac{1.43^2}{2\times 9.81}

So h=0.23 m

So the difference of head in the level of reservoir is 0.23 m.

You might be interested in
Question: 10 of 15
Anvisha [2.4K]

Answer:

Leg length

Explanation:

The distances from the root to the edges of the legs (toes) and the height of the crown are basic measurements.

3 0
3 years ago
How to study thermodynamics?​
expeople1 [14]

It is study of the relationships between heat, temprature, work and energy

7 0
2 years ago
Read 2 more answers
is released from under a vertical gate into a 2-mwide lined rectangular channel. The gate opening is 50 cm, and the flow rate in
SVEN [57.7K]

Answer:

hello your question is incomplete attached below is the complete question

answer: There is a hydraulic jump

Explanation:

First we have to calculate the depth of flow downstream of the gate

y1 = C_{c} y_{g} ----------- ( 1 )

Cc ( concentration coefficient ) = 0.61  ( assumed )

Yg ( depth of gate opening ) = 0.5

hence equation 1 becomes

y1 = 0.61 * 0.5 = 0.305 m

calculate the flow per unit width q

q = Q / b ----------- ( 2 )

Q = 10 m^3 /s

 b = 2 m

hence equation 2 becomes

q = 10 / 2 = 5 m^2/s

next calculate the depth before hydraulic jump y2 by using the hydraulic equation

answer : where  y1 < y2 hence a hydraulic jump occurs in the lined channel

attached below is the remaining part of the solution

4 0
3 years ago
A well insulated turbine operates at steady state. Steam enters the turbine at 4 MPa with a specific enthalpy of 3015.4 kJ/kg an
Anarel [89]

Answer:

power developed by the turbine = 6927.415 kW

Explanation:

given data

pressure = 4 MPa

specific enthalpy h1 = 3015.4 kJ/kg

velocity v1 = 10 m/s

pressure = 0.07 MPa

specific enthalpy h2 = 2431.7 kJ/kg

velocity v2 = 90 m/s

mass flow rate = 11.95 kg/s

solution

we apply here  thermodynamic equation that

energy equation that is

h1 + \frac{v1}{2}  + q = h2 + \frac{v2}{2}  + w

put here value with

turbine is insulated so q = 0

so here

3015.4 *1000 + \frac{10^2}{2}  =  2431.7 * 1000 + \frac{90^2}{2}  + w

solve we get

w = 579700 J/kg = 579.7 kJ/kg

and

W = mass flow rate × w

W = 11.95 × 579.7

W = 6927.415 kW

power developed by the turbine = 6927.415 kW

7 0
3 years ago
Which timeline shows the correct order of contributions made to the discovery of DNA?
Akimi4 [234]

Answer:

<em><u>THE ANSWER IS: B</u></em>

Explanation:

I took the Unit test and the answer is B

3 0
2 years ago
Read 2 more answers
Other questions:
  • You want to determine whether the race of the defendant has an impact on jury verdicts. You assign participants to watch a trial
    9·1 answer
  • The flatbed truck carries a large section of circular pipe secured only by the two fixed blocks A and B of height h. The truck i
    14·2 answers
  • Why is it important to stop climate change?
    15·2 answers
  • The fouling on the heat exchanger surfaces causes additional thermal resistance, thus decreases the heat transfer rate. a)- True
    11·1 answer
  • On a hot summer day, a student turns his fan on when he leaves his room in the morning. When he returns in the evening, will the
    5·1 answer
  • Megan is an architect who is creating a building design. Which is a prominent technical aspect that she needs to keep in mind wh
    12·1 answer
  • A structural component in the form of a wide plate is to be fabricated from a steel alloy that has a plane-strain fracture tough
    10·1 answer
  • The tropics receive more heat from the sun than is radiated away from the tropics, and polar regions radiate more than they rece
    15·1 answer
  • The thermal energy is carried by electromagnetic waves
    12·1 answer
  • The ______ number of a flow is defined as the ratio of the speed of flow to the speed of sound in the flowing fluid.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!