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
Hoochie [10]
3 years ago
10

A water tower that is 90 ft high provides water to a residential subdivision. The water main from the tower to the subdivision i

s 6 in. sch 40, 3 miles long. If each house uses a maximum of 50 gal/hr (at peak demand) and the pressure in the water main is not to be less than 30 psig at any point, how many homes can be served by the water main?
Engineering
1 answer:
Softa [21]3 years ago
5 0

Answer:

number of houses = 3751.243

Explanation:

given data

tower high H =  90 ft

pipe length L = 3 mile

pipe dia d = 6 in

solution

we consider here loss is neglected by dia 6 in pipe

so we apply here bernaulis equation from top to bottom height 90 ft

\frac{P1}{\rho g} + \frac{V1^2}{2 g} + Z1 = \frac{P2}{\rho g} + \frac{V2^2}{2 g} + Z2      ..........................1

here P1 is = o gauge pressure

and P2 = 30 Psi  = 206.843 × 10^{3} Pa

and Z1 = 27.432 m

and Z2 = 0 and V1 = 0

so from equation 1

0+0+27.432 = \frac{206.843*10^3}{1000*9.81} × \frac{V2^2}{2*9.81}

solve we get

V = 11.16 m/s

V = 36.6 ft/s

and

flow will be here

flow Q = AV     ............2

Q = \frac{\pi}{4} (0.15)^2 × 11.16

Q = 0.19723 m³/s

Q = 187562.157 gal/hr

we have given house  use maximum = 50 gal/hr

so total home served = \frac{total flow}{need 1 home}

number of houses = \frac{187562.157}{50}

so number of houses = 3751.243

You might be interested in
1. The construction process begins with which of the following stages?
Firdavs [7]

Answer:

c) site preparation

Explanation:

A construction process can be defined as a series of important physical events (processes) that must be accomplished during the execution of a construction project.

Generally, in the construction of any physical asset such as offices, hospitals, schools, stadiums etc, the first step of the construction process is site preparation. Site preparation refers to processes such as clearing, blasting, levelling, landfilling, surveying, cutting, excavating and demolition of all unwanted objects on a piece of land, so as to make it ready for use.

This ultimately implies that, site preparation should be the first task to be accomplished in the construction process.

Hence, the construction process typically begins with site preparation before other activities such as the laying of foundation can be done.

Additionally, construction costs can be defined as the overall costs associated with the development of a built asset, project or property. The construction costs is classified into two (2) main categories and these are; capital and operational costs.

7 0
3 years ago
In a website browser address bar, what does “www” stand for?
Ludmilka [50]

Answer:

www stands for world wide web

Explanation:

It will really help you thank you.

3 0
3 years ago
Can someone draw a electric circuit with electrical symbols for this
erastovalidia [21]

Answer:

i cant draw it

i am sry

Explanation:

4 0
3 years ago
Read 2 more answers
Let's model this housing price data! Before we can do this, however, we need to split the data into training and test sets. Reme
Lilit [14]

The program reads in a dataset into a pandas dataframe, and uses the train_test_split function in the sklearn library to split the data into <em>training and test sets</em>. The code goes thus :

import pandas as pd

<em>#import</em><em> </em><em>the</em><em> </em><em>pandas</em><em> </em><em>dataframe</em><em> </em><em>and</em><em> </em><em>alias</em><em> </em><em>it</em><em> </em><em>as</em><em> </em><em>pd</em>

from sklearn.model_selection import train_test_split

<em>#import</em><em> </em><em>the</em><em> </em><em>train_test_split</em><em> </em><em>function</em><em> </em>

housing_df = pd.read_csv('housing price.csv')

<em>#read</em><em> </em><em>in</em><em> </em><em>the</em><em> </em><em>housing</em><em> </em><em>data</em><em> </em>

features_df = df.iloc[:,1:]

<em>#seperate</em><em> </em><em>the</em><em> </em><em>features</em><em> </em><em>from</em><em> </em><em>the</em><em> </em><em>label</em><em> </em><em>;</em>

target_df = df.iloc[:,0]

<em>#put</em><em> </em><em>the</em><em> </em><em>label</em><em> </em><em>into</em><em> </em><em>a</em><em> </em><em>seperate</em><em> </em><em>dataframe</em><em> </em><em>as</em><em> </em><em>well</em><em>.</em><em> </em>

X_train, X_test, Y_train, Y_test = train_test_split(features_df, target_df, test_size = 0.1, random_state = 1)

<em>#uses</em><em> </em><em>tuple</em><em> </em><em>unpacking</em><em> </em><em>to</em><em> </em><em>randomly</em><em> </em><em>assign</em><em> </em><em>the</em><em> </em><em>data</em><em> </em><em>each</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>4</em><em> </em><em>variables</em><em>.</em><em> </em>

<em>#</em><em>Test</em><em> </em><em>size</em><em> </em><em>is</em><em> </em><em>test</em><em> </em><em>percent</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>entire</em><em> </em><em>dataset</em><em> </em>

Learn more :brainly.com/question/4257657?referrer=searchResults

3 0
2 years ago
What type of test can show a chemical engineer if a material remains in a system and accumulates or if it moves right through?
UkoKoshka [18]

A chemical engineer can clearly see from this kind of test if a substance stays in a system and builds up or if it just passes through.

<h3>What is a chemical engineer?</h3>
  • Processes for manufacturing chemicals are created and designed by chemical engineers.
  • To solve issues involving the manufacture or usage of chemicals, fuel, medications, food, and many other goods, chemical engineers use the concepts of chemistry, biology, physics, and math.
  • A wide range of sectors, including petrochemicals and energy in general, polymers, sophisticated materials, microelectronics, pharmaceuticals, biotechnology, foods, paper, dyes, and fertilizers, have a significant demand for chemical engineers.
  • Chemical engineering is undoubtedly difficult because it requires a lot of physics and math, as well as a significant number of exams at the degree level.

To learn more about chemical engineer, refer to:

brainly.com/question/23542721

#SPJ4

7 0
2 years ago
Other questions:
  • Mike is involved in developing the model building codes that various states and local authorities in the United States adopt. He
    6·1 answer
  • Technician A says independent shops are not affiliated with vehicle manufacturers, but it is easy for technicians who work in th
    8·1 answer
  • // This program accepts data about 100 books and// determines a price for each.// The price is 10 cents per page for the// first
    12·1 answer
  • The water behind Hoover Dam in Nevada is 221 m higher than the Colorado River below it. At what rate must water pass through the
    6·1 answer
  • An operating gear box (transmission) has 350 hp at its input shaft while 250. hp are delivered to the output shaft. The gear box
    10·1 answer
  • List everything wrong with 2020
    5·2 answers
  • The difference in quantity between the add and full marks on an engine oil dipstick is typically
    5·1 answer
  • Steven is starting a project that requires a specialized, experienced contractor. Which selection process is the most suitable f
    11·1 answer
  • Technician A says that the low level brake fluid switch on a master cylinder will turn on the brake warning light when the syste
    9·1 answer
  • This acronym is a reminder of the most common types of hazards or injuries caused by electricity.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!