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
Crazy boy [7]
3 years ago
12

For Laminar flow conditions, what size pipe will deliver 90 gpm of medium oil at 40°F (υ = 6.55 * 10^‐5)?

Engineering
1 answer:
MrRissso [65]3 years ago
3 0

Answer:

1.693 feet

Explanation:

We have given Q = 90 gpm

We know that 1 cubic feet per second = 443.833 gpm

So 90 gpm will be equal to \frac{90}{443.833}=0.202\frac{ft^3}{sec}

Let d is the diameter of the pipe then V_{avg}=\frac{Q}{A}=\frac{0.2}{\frac{\pi }{4}d^2}=\frac{0.255}{d^2}

We know that for pipe flow critical Reynolds number =2300

So \frac{V_{avg}d}{\nu }=2300

Value of \nu is 6.55\times 10^{-5} given in question

So \frac{0.255\times d}{d^2\times 6.5\times 10^{-5}}=2300

d=1.693 feet  

You might be interested in
11. What are restrictions when building or completing a challenge?
katrin [286]

Explanation:

The minimum exterior open spaces around buildings that are 55 metres or more, should be 16 metres. On sides where no habitable rooms face, a minimum space of 9 metres shall be left for heights above 27 metres.

3 0
3 years ago
What happen when position and crest of a light wave decreases
Mars2501 [29]

Answer:

All photons travel at the speed of light. ... From this equation, it is clear that the energy of a photon is directly proportional to its frequency and inversely proportional to its wavelength. Thus as frequency increases (with a corresponding decrease in wavelength), the photon energy increases and visa versa.

Explanation:

6 0
3 years ago
Create a package named one_dimensional_array and write a class that completes the following "OneDimensionalArrays" class. You wi
yan [13]

Answer:

The filled in codes are

1) private static int[] arr;

2)  int arr[] = new int[size_of_array];

        int increment = 100;

        for (int i = 0; i < size_of_array; i++) {

       arr[i] = increment * i;

       }

      return arr;

3) for (int i = 0; i < myArray.length; i++) {

      System.out.println(myArray[i]);

4)  OneDimensionalArrays result = new OneDimensionalArrays();

    result.createIntegers(num);

    result.printArray(arr);

Explanation:

Create a package named one_dimensional_array and write a class that completes the following "OneDimensionalArrays" class. You will complete the class by filling in code wherever you see the comment:

//******* FILL IN CODE *********

import java.util.Scanner;

public class OneDimensionalArrays {

   

   int[] createIntegers(int size_of_array)

   {

      //*******  FILL IN CODE *********

      // Your code will create an array of ints as large as specified in size_of_array

      // Fill the array in with the values: 0, 100, 200, 300, ....

      // Return the array that you just created

   }

   void printArray(int[] myArray)

   {

      //*******  FILL IN CODE *********

       // Print out your array with one number per line.  Get the size of the

       // array from the "myArray" parameter (no hard coding the size)

   }

   public static void main(String[] args) {

       Scanner keyboard = new Scanner(System.in);

       

       System.out.println("Enter size of array to create: ");

       int num = keyboard.nextInt();

       //*******  FILL IN CODE *********

       // Construct an instance of the OneDimensionalArrays class

       // Using this object instance, call createIntegers to create

       // an array of integers.  Don't forget to save the results

       // Then call the printArray method to print out the contents

       // of your array.

       }

}

Completed Code when filled in looks this way below:

import java.util.Scanner;

public class OneDimensionalArrays {

  private static int[] arr;

  int[] createIntegers(int size_of_array) {

       int arr[] = new int[size_of_array];

       int increment = 100;

       for (int i = 0; i < size_of_array; i++) {

             arr[i] = increment * i;    

       }

       return arr;

   }

   void printArray(int[] myArray) {

       for (int i = 0; i < myArray.length; i++) {

           System.out.println(myArray[i]);          

       }

   }

   public static void main(String[] args) {

       Scanner keyboard = new Scanner(System.in);

       System.out.println("Enter size of array to create: ");

       int num = keyboard.nextInt();

       OneDimensionalArrays result = new OneDimensionalArrays();

       result.createIntegers(num);

       result.printArray(arr);

   }

}

7 0
3 years ago
Mary wants to study the codes that provide regulations to safeguard against fires and explosions arising from the storage and ha
MrRa [10]
I believe the answer you’re looking for is A. International Fire Code
6 0
3 years ago
Read 2 more answers
Write a function M-file that takes as input two matrices A and B, and as output produces the product by columns of the two matri
docker41 [41]

Answer:

Here is the code in Matlab for the function.

I have also attached the m file for function as well as the test run of the code  here and screenshot of the result.

Code:

function [ C ] = columnproduct( A, B )

% get the dimesnions of A

sizeA = size(A);

sizeB = size(B);

% check if columns of A are same as rows of B

if(sizeA(2) ~= sizeB(1))

   error('matrix dimensions do not match')

end

% initialize resultant matrix

C = [];

for i = 1:sizeB(2)

   % concatenating product of matrix A with each column of B

   C = [C A*B(:,i)];

end

end

7 0
3 years ago
Other questions:
  • The uniform beam is supported by two rods AB and CD that have crosssectional areas of 10 mm2 and 15 mm2 , respectively. Determin
    5·1 answer
  • A converging - diverging frictionless nozzle is used to accelerate an airstream emanating from a large chamber. The nozzle has a
    15·2 answers
  • Given the system of equations−3x2+7x3=2,x1+2x2–x3=3,5x1−2x2=2(a). Compute the determinant. (b). Use Cramer’s rule to solve for t
    6·1 answer
  • Under a construction management (CM) contract, should the CM firm's responsibilities normally begin at the construction phase, t
    5·1 answer
  • How much thermal energy is needed to raise the temperature of 15kg gold from 45⁰ C up to 80⁰ C​
    10·1 answer
  • A wooden pallet carrying 540kg rests on a wooden floor. (a) a forklift driver decides to push it without lifting it.what force m
    10·1 answer
  • Tech A says that to reassemble a duo-servo brake, first reassemble the brake shoes on the backing plate, and then attach the par
    6·1 answer
  • What would be the structure for the body points for a persuasive presentation?.
    8·1 answer
  • A rope is wrapped three and a half times around a cylinder. Determine the range of force T exerted on
    15·1 answer
  • If the resistance in a series circuit is 12 K Ohms, and the amperage is 0. 0063 amps, what is the voltage?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!