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Novay_Z [31]
3 years ago
10

A spherical container of inner radius of 0.44 m and outer radius of 0.6 m with a thermal conductivity 18 W/m·K holds radioactive

waste that generates heat at 1 x 105 W/m3. The outer surface is exposed to a water flow with [infinity] 25°C and 750 W/m2·K. Find the heat transfer through the wall of container as well as the temperatures at the inside and outside surfaces of the container

Engineering
1 answer:
dalvyx [7]3 years ago
5 0

Answer:

Explanation:

The concept of heat transfer is applied, by first equation the heat generated to the heat trasnfer by convection to get the temperature of the outer surface.

Also equating the head conducted to the heat generated to get the temperature of the inside surfaces. Tthe steps and detailed calculations is as shown in the attachment.

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A higher grade number for oil means it is _____.
fenix001 [56]

Answer:

For example, a 5W- motor oil will flow better at lower temperatures than a 15W- motor oil. The higher number, following the “w” refers to hot weather viscosity, or how fluid your oil is at hot temperatures. The higher the number, the thicker the oil at a specified temperature. so it's B

Explanation:

3 0
4 years ago
Read 2 more answers
Java Programming: Loops and Conditionals
velikii [3]

Answer:

  1. import java.util.Scanner;
  2. import java.util.Random;
  3. public class Main {
  4.    public static void main(String[] args) {
  5.        Scanner input = new Scanner(System.in);
  6.        Random rand = new Random();
  7.        System.out.print("Enter number of questions you wish to practice: ");
  8.        int n = input.nextInt();
  9.        int i = 1;
  10.        while(i <= n){
  11.            int num1 = 1 + rand.nextInt(10);
  12.            int num2 = 1 + rand.nextInt(10);
  13.            int answer = num1 * num2;
  14.            System.out.print("Question " + i + ": " + num1 + " x " + num2 + " = ");
  15.            int response = input.nextInt();
  16.            if(response == answer){
  17.                System.out.println("Correct answer!");
  18.            }
  19.            else{
  20.                System.out.println("Wrong answer. It should be " + answer);
  21.            }
  22.            i++;
  23.        }
  24.    }
  25. }

Explanation:

Firstly, we import Scanner and Random classes (Line 1-2) as we need to get user input for number of questions and generate random number in each question.

Next, create a Scanner and Random object (Line 7-8).  Prompt user to input number of question and get the input using the Scanner object (Line 10-11).

Next create a while loop and set the condition to loop for n number of times (based on number of questions) (Line 14). In the loop, use Random object nextInt method to generate two integers between 1 -10 (Line 15-16). Prompt user to input an answer using the Scanner object (Line 18-19). If the response is matched with answer print a correct message (Line 21-22) other wise inform user they write a wrong answer and show the correct answer (Line 24-25).

8 0
4 years ago
Malia is working with aluminum wire. while working with this type of wire, she must remember to a. always use pressure-type term
Y_Kistochka [10]

Answer:

B

Explanation:

Aluminium doesn't rust unless exposed to copper for a duration of time.

4 0
3 years ago
What are some of the main causes of accidents?
Ainat [17]

Answer

Being drunk, texting, being distracted

Explanation:

Hope this helped.

3 0
4 years ago
Consider a simple ideal Rankine cycle with fixed boiler and condenser pressures. If the steam is superheated to a higher tempera
Usimov [2.4K]

Answer:

Option D - the moisture content at turbine exit will decrease

Explanation:

In an ideal rankine system, the phenomenon of superheating occurs at a state where the vapor state of the fluid is heated above its saturation temperature and the phase of the fluid is changed from the vapor phase to the gaseous phase.

Now, a vapour phase has two different substances at room temperature, whereas a gas phase consists of just a single substance at a defined thermodynamic range, at standard room temperature.

At the turbine exit, since it's just a single substance in gaseous phase, it means it will have less moisture content.

Thus, the correct answer is;the moisture content at turbine exit will decrease

4 0
3 years ago
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