Which of these scientists

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Which of these scientists is responsible for coining the term radioactivity and is also the only person to receive two noble prizes in science?
Becquerel
Curie
Einstein
Rutherford
Thompson

Which type of radioactive emission has the highest ionizing power?
Positrons
Beta particle
Alpha particle
Gamma rays
Neutrons

Customer reply 28 Nov 2018
A radioactive decay series will continue until ________.
the substance disintegrates into nothing but radioactive decay particles.
a stable nucleus is produced.
the same number of alpha and beta emissions have taken place.
none of the above

Nitrogen-13 has a half-life of 10 minutes. How much of a 16 mg sample would remain after 30 minutes?
0.5 mg
1 mg
2 mg
4 mg
8 mg

Which of these two scientists built the first nuclear reactor?
Einstein and Rutherford
Hahn and Strassmann
Curie and Becquerel
Meitner and Fermi
Fermi and Szilard

Customer reply 28 Nov 2018
A reaction which absorbs heat from the surroundings is known as a(n) ____.
heat capacity
exothermic reaction
endothermic reaction
enthalpy reaction
combustion reaction

Which of the following is incorrect regarding photosynthesis?
Carbon dioxide is a reactant.
Oxygen is a product.
The process is exothermic.
Water is a reactant.

Customer reply 28 Nov 2018
How many Calories are released from a burning nut which releases 15,600 J of heat?
3.73 Cal
15.6 J
65.2 Cal
269 Cal
3.7 × 10^3 Cal

Which of these does not involve an increase in the random motion of a system?
Burning log
Freezing water
Exploding bomb
Hot skillet
Helium escaping from a balloon

Energy cannot be created nor destroyed, only transferred is known as the ____.
1st law of thermodynamics
2nd law of thermodynamics
3rd law of thermodynamics
law of heat conservation
law of entropy conservation

The normal body temperature is 98.6°F. What is the temperature in Kelvin?
23 K
37 K
119 K
177 K
310. K

 

Cloneable

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In this exercise, you’ll implement the Cloneable interface for the Product and LineItem classes.

1. Open the project named ch_09_ex3_CloneableTest in the ex_starts directory. Display the ProductCloneApp class and review its code.
2. Implement the Cloneable interface for the Product class. Then, compile the Product and ProductCloneApp classes. If you implemented the Cloneable interface correctly, the ProductCloneApp class should compile.
3. Run the ProductCloneApp class to make sure it works correctly.
4. Repeat steps 1 through 3 for the LineItemCloneApp and LineItem classes.

This project

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Objective
This project focuses on demonstrating your understanding of Java Collections. Before attempting this project, be sure you have completed all of the reading assignments listed in the syllabus to date, participated in the weekly conferences, and thoroughly understand the examples throughout the chapters. The project requirements include:
Requirements
Design, write and test the Java program ReadStoreShow.java with the following requirements:
1. Invite the user to enter an input file name and a number N (10 <= N <= 20). Read N pairs of unique colors and their unique associated hexadecimal values (for example Red FF0000) from the specified file (each pair color – hexadecimal value should be on a separate line) and store them in appropriate JCF collection(s). Give reasons for the chosen JCF collection(s);
2. Sort the pairs in the increasing order of their hexadecimal values and then use iterators to display the sorted pairs to the console.
3. Using a GUI, display the pairs as radio buttons. When the user selects a radio button, the background of the GUI should change to that color.
Note. Using GUI automatic generation facilities of IDEs is not accepted.
Your programs should compile and run without errors.

called Shape

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 Design an abstract class called Shape. This class must contain a single constructor that accepts a single numeric value that can be used to calculate various values, one of which is area. Include an abstract method called findArea that can be defined to find the area of any shape. Also provide a concrete to return the area. Design two concrete classes, Circle and Square that inherits fhe class Shape. Each of these classes finds the respective area; i.e. area of circle and area of square. You are responsible for providing the relevant variables.

 

YAI 26

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1) A state of nature is an actual event that may occur in the future.

2) A payoff table is a means of organizing a decision situation, including the payoffs from different decisions given the various states of nature.

3) The maximax criterion results in the maximum of the maximum payoffs.

4) The maximin approach involves choosing the alternative with the highest payoff.

5) Regret is the difference between the payoff from the best decision and all other decision payoffs.

6) The minimax regret criterion minimizes the maximum regret.

7) The minimax regret criterion maximizes the maximum regret.

8) The Hurwicz criterion is a compromise between the maximax and maximin criteria.:

9) The Hurwicz criterion is a compromise between the minimax and minimin criteria.

10) The coefficient of optimism is a measure of the decision maker’s optimism.

11) The Hurwicz criterion multiplies the best payoff by the coefficient of optimism.

12) The Hurwicz criterion multiplies the worst payoff by the coefficient of optimism.

13) A dominant decision is one that has better payoff than another decision under each state of nature.

14) The appropriate criterion is dependent on the risk personality and philosophy of the decision maker.

15) The maximax criterion is optimistic.
16) The maximin criterion maximizes the minimum regret.

17) The minimax criterion minimizes the maximum payoff.

18) Regret and opportunity loss mean the same thing.

19) The equal likelihood criterion assigns a probability of 0.5 to each state of nature.

20) Expected opportunity loss is the expected value of the regret for each decision.

21) When using decision trees, branches with the greatest expected value are selected.

22) A decision tree is a diagram consisting of circles decision nodes, square probability nodes, and branches.

23) When the __________ criterion is used, the maximum of the maximum payoffs is observed.

24) When the __________ criterion is used, the maximum of the minimum payoffs is observed

25) __________ is the difference between the payoff from the best decision and all other decision payoffs.

26) The __________ is a compromise between the maximax and the maximin criterion. Answer: Hurwicz criterion

27) The __________ is a measure of the decision makers optimism.

28) A(n) __________ decision is one that has a better payoff than another decision under the state of nature.

29) A __________ structures decisions with series of nodes.

30) The __________ of sample information is the ratio of the expected value of sample information to the expected value of perfect information.

31) When the __________ criterion is used, the decision maker selects the decision alternative that minimizes the maximum regret.

32) A ________ decision tree illustrates a situation requiring a services of decisions.

33) ________ is a measure of personal satisfaction derived from money.

34) People who forgo a high expected value to avoid a disaster with a low probability are __________.

Pearson Education, Inc. Publishing as Prentice Hall A group of friends are planning a recreational outing and have constructed the following payoff table to help them decide which activity to engage in. Assume that the payoffs represent their level of enjoyment for each activity under the various weather conditions. Weather Cold Warm Rainy S1 S2 S3 Bike: A1 10 8 6 Hike: A2 14 15 2 Fish: A3 7 8 9

35) If the group is optimistic, what decision should they make?

36) If the group is conservative, what decision will they make?

37) If the group chooses to minimize their maximum regret, what activity will they choose?

38) If the probabilities of cold weather (S1), warm weather (S2), and rainy weather (S3) are 0.2, 0.4, and 0.4, respectively, then what decision should be made using the expected value criterion?
39) What is the EVPI for this situation?

Pearson Education, Inc. Publishing as Prentice Hall An investor is consider 4 different opportunities, A, B, C, or D. The payoff for each opportunity will depend on the economic conditions, represented in the payoff table below. Poor Investment (S1) A 50 B 80 C -100 D 25 Economic Condition Average Good Excellent (S2) (S3) (S4) 75 20 30 15 40 50 300 -50 10 25 25 25

40) What decision would be made under maximax?

41) What decision would be made under maximin?

42) What decision would be made under minimax regret?

43) If the probabilities of each economic condition are 0.5, 0.1, 0.35, and 0.05 respectively, what investment would be made using the expected value criterion?

44) What is the expected value of perfect information?

Pearson Education, Inc. Publishing as Prentice Hall A manager has developed a payoff table that indicates the profits associated with a set of alternatives under 2 possible states of nature. Alt 1 2 3 S1 10 -2 8 S2 2 8 5 45) If the manager uses maximin as the decision criterion, which of the alternatives should she choose?

46) If the manager uses minimax regret as the decision criterion, which of the alternatives would she choose?

47) use the expected value criterion to select the best alternative. Assume that the probability of S2 is equal to 0.4.

48) Compute the expected value of perfect information assuming that the probability of S2 is equal to 0.4.

Pearson Education, Inc. Publishing as Prentice Hall The local operations manager for the IRS must decide whether to hire 1, 2, or 3 temporary workers. He estimates that net revenues will vary with how well taxpayers comply with the new tax code.

49) If he uses the maximin criterion, how many new workers will he hire?

50) If he uses the minimax regret criterion, how many new workers will he hire?