Case Study

This case study is about the nuclear disaster of Chernobyl in 1984. It covers all the ethical mistakes and aspects involved in the occurring of the disaster. The ethical dilemmas, responsibilities, whistle blowing & cultural norms of engineers are discussed in it.

The Chernobyl disaster was a catastrophic nuclear accident that occurred on 26 April, 1986 at 1:23:45 AM at the No. 4 nuclear reactor in the Chernobyl Nuclear Power Plant, near the city of Pripyat in the north of the Ukrainian SSR. It is one of only two nuclear disasters rated as INES 7, the maximum severity classification.

The accident started during a safety test on a common Soviet reactor, the RBMK type.

A very large amount of energy was suddenly released vaporizing superheated cooling water and rupturing the reactor pressure vessel in a highly destructive steam explosion. This was immediately followed by an open-air reactor core fire. The core fire released considerable airborne radioactive contamination for about nine days which precipitated onto parts of the USSR and Western Europe, before being finally contained on 4 May 1986. The radioactive contamination dispersed over this period was approximately the same amount as that released during the initial explosion. Thirty-six hours after the accident, a 10-kilometre exclusion zone was created, with the rapid evacuation of 49,000 people, primarily from Pripyat, and this was increased from 10 to 30 km shortly after when a further 68,000 persons were evacuated, including from the town of Chernobyl itself.

From years of research we know what technically went wrong in Chernobyl disaster. Write few things, what “Ethically” went wrong while keeping in mind following points.

Question number 1:

1. Discuss awareness of professional, social and ethical responsibility of engineers in the disaster [CLO1,PLO6]                                                                                                                                          5                                                                               
2. Should the engineers have blown the Whistle? [CLO2, PLO8]                                                              5                                                                 

Question Number 2:

1. Choose different dilemmas in engineering practice of Chernobyl disaster according to ethical behavior? [CLO3,PLO7]                                                                                                                                       5
2. Explain the impact of personality and cultural norms on engineer’s responsibilities in the Chernobyl scenario? [CLO4, PLO6]                                                                                                                         5

3. The partnership has four partners A 2% partner, individual calendar year. B 51% partner, corporation, 6/30 fiscal year. C 30% partner, corporation, 6/30 fiscal; D 17% corporation, 6/30 fiscal. What taxable years may the partnership use under the following alternative situations?
(a) What taxable year(s) may the partnership use?
(b) Suppose C and D use the 4/30 fiscal year instead.
(c) Suppose A is 22%, B is 31%, and C and D use the 4/30 fiscal year.

a ferris wheel 42.5m in diameter rotates once every 18.2s. What is the ratio of a person's apparent weight to her real weight at (a) the top and (b) the bottom?

please please PLEASE show all steps and write out all the work I have been stuck on this problem and I can't figure out where I'm going wrong.

Do all objects in free fall reach terminal velocity because I thought objects in free fall always accelerate with 9.8 m/s/s so why is there a point where they stop accelerating

Consider the titration of a 100mL of 0.100 M HCN by .100M NaOH. (Ka for HCN is 6.2x10^-10) Calculate the pH after 50.0 mL of .100M NaOH has been added

Title: At the 99% confidence level, what is the proportion of teenagers who play tennis?

____ 3.- Out of a sample of 120 teenagers, 14 of them responded YES to the question “Do you play tennis?” To answer the question in the title:

We would calculate a confidence interval centered at p_hat with a margin of error of 2.576*sqrt(0.12*(1-0.12)/120).

We would calculate a confidence interval centered at p with a margin of error of 2.576*sqrt(0.12*(1-0.12)/120).

We would calculate a significance test with z=sqrt(0.12*(1-0.12)/120).

We would calculate a significance test with Ho: p_hat=0.12.

Both c and d.

15.  Patients with Clostridium difficile infections have diarrhea and can have severe infections in their peritoneal cavities (peritonitis) and blood (sepsis). The diarrhea and widespread infections result, at least in part, from altered cell adhesions in cells lining the colon.

A.  [2 pts] What type of cells line the colon, and what type of adhesion linking these cells is likely altered in difficile infection?

B.  [4 pts] How could changes to the cell adhesions you listed in part A promote infections in the blood and peritoneal cavity?  Explain your reasoning.

PointList Class

Write a class named PointList that keeps a list of Point objects in an ArrayList. The PointList class should accept any object that is an instance of the Point class,, or a subclass of Point. Demonstrate the class in an application.

This is My point class….

public class Point<T>

{

   private T xCoordinate;

private T yCoordinate;

   public Point(T x, T y)

   {

   xCoordinate = x;

   yCoordinate = y;

   }

public void setX(T ){

       xCoordinate = x;

   }

   public void setY(T y) {

       yCoordinate = y;

   }

public T getX(){

       return xCoordinate;

   }

public T getY(){

   return yCoordinate;

   }

}

And this is the starting of my code…my teacher wants it this way

import java.util.ArrayList;

public final class PointList<T extends Point<? extends Number>>

{

ArrayList<T> arrList = new ArrayList<>();

}

With relevance to Organic Chemistry and acids and bases, can somebody teach me everything there is to know about pka?

A 7.50g bullet traveling at 490m/s embeds itself in a 1.59kg wooden block at rest on a frictionless surface. The block is attached to a spring with k = 89.0N/m

Find the Period

Find the amplitude of the subsequent simple harmonic motion.

Eric wants to estimate the percentage of elementary school children who have a social media account. He surveys 450 elementary school children and finds that 280 have a social media account.

Identify the values needed to calculate a confidence interval at the 99% confidence level. Then find the confidence interval.

Use the table of common z-scores above.

• Round the final answer to three decimal places.

Design a teaching plan about bike safety (helmet) for a community population. The reaching plan must have objectives, contents outline, learning development and activities and evaluation.

1. Estimate the labor hours required for a household with a moving size of 2000 CuFt and 6 Large Furniture
2. Based on the model output, we can say that both the size of the move (CuFt) and number of large furniture moved are important considerations when estimating the total number of labor hours required. We can make this claim because

• The FSTAT (F in the ANOVA Table) = 228.80, p-value (Sig.) is 0.00 = True or False?
• p-value for the slope coefficient of number of large furniture is 0.00 = True or False?
• p-value for the slope coefficient of the size of the mode (CuFt) is 0.00 = True or False?

3. Two households have the same moving volume (Cu Ft). One house has 5 large furniture to move while the second house has 8 large furniture to move. The average extra labor hours required for the second house is:

Aluminum hydroxide reacts with sulfuric acid as follows: 2Al(OH)3(s)+3H2SO4(aq)→Al2(SO4)3(aq)+6H2O(l)

1)How many moles of Al2(SO4)3 can form under these conditions?

2)How many moles of the excess reactant remain after the completion of the reaction?

Thank you!!