Alchemists in the Middle Ages dreamed of converting base metals, such as lead, into precious metals—gold and silver. Why could they never succeed? Today could we convert lead to gold?

B. are gamma (γ), alpha (α), mu (μ), epsilon (ε), and delta (δ)

C. include κ and λ

D. carry out different functions in the immune response

Suppose your architectural/design style for the human resource management scenario is MVC, what would be the best architectural evaluation technique to ensure that your choice of the selected architectural/design style is correct? Describe your answer with justification.

Match the following aqueous solutions with the appropriate letter from the column on the right.

another one:

Match the following aqueous solutions with the appropriate letter from the column on the right.

1. What is the difference between “resistance” and “resistivity”?

2. What is the rated resistance of a resistor coded with the color bands: Brown-Gray-White? (Google resistor color codes)

3. Voltmeters measure electric potential; ammeters measure electric current. Which of these two types of measuring device is likely to have an extremely high internal resistance? Which is likely to have a very low internal resistance? Explain your answers.

4. Suppose you have two light bulbs, A and B, which are identical in their construction except that the wire filament in bulb B is twice as thick as the wire filament in bulb A. If you apply the same voltage to the two bulbs, which glows brighter? Assuming the same operating efficiency for the two bulbs, how much brighter?

Write a two-page paper mentioning some opportunity costs of stricter government safety regulations to improve drug safety, and explain why the concept of opportunity cost is helpful for evaluating whether or not stricter safety regulations are in the public interest. Please be clear and concise about what you are trying to explain that relates to the above question.

Planet Corporation acquired 90 percent of Saturn Company’s voting shares of stock in 20X1. During 20X4, Planet purchased 40,000 Playday doghouses for $24 each and sold 25,000 of them to Saturn for $30 each. Saturn sold 18,000 of the doghouses to retail establishments prior to December 31, 20X4, for $45 each. Both companies use perpetual inventory systems.

Required:
a. Prepare all journal entries Planet recorded for the purchase of inventory and resale to Saturn Company in 20X4. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field.)

Record the purchase of inventory.

Record the sales of the Playday doghouses.

Record the cost of goods sold.

b. Prepare the journal entries Saturn recorded for the purchase of inventory and resale to retail establishments in 20X4. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field.)

Record the purchase of inventory.

Record the sales of the Playday doghouses.

Record the cost of goods sold.

c. Prepare the worksheet consolidation entry(ies) needed in preparing consolidated financial statements for 20X4 to remove the effects of the intercompany sale. (If no entry is required for a transaction/event, select "No journal entry required" in the first account field.)

Record the consolidation entry.

Bramble, Inc. prepared the following cash budget for the fourth quarter. Fill in the missing amounts, assuming that Bramble desires to maintain a $15,000 minimum monthly cash balance and all equipment was purchased during December. Any required borrowings and repayments must be made in even increments of $1,000. (Enter answers in necessary fields only. Leave other fields blank. Do not enter 0.)

The reaction 2H2O2(aq)→2H2O(l)+O2(g)2H2O2(aq)→2H2O(l)+O2(g) is first order in H2O2H2O2 and under certain conditions has a rate constant of 0.00752 s−1s−1 at 20.0 ∘C∘C. A reaction vessel initially contains 150.0 mLmL of 30.0% H2O2H2O2 by mass solution (the density of the solution is 1.11 g/mLg/mL). The gaseous oxygen is collected over water at 20.0 ∘C∘C as it forms.

What volume of O2O2 will form in 62.8 seconds at a barometric pressure of 773.0 mmHg . (The vapor pressure of water at this temperature is 17.5 mmHg)

Question: Describe two limitations, both actual and potential of “service efforts and accomplishments” (SEA) indicators, and describe how they might be overcome.

Your goal for this assignment is to create a tool that manages an equivalence relation that can be changed in a specific way by the program while the program runs. The assignment will involve creating two files, equiv.h and equiv.cpp.

For this assignment, the equivalence relation is always over a set of integers {1, 2, 3, …, n} for some positive integer n.

This tool is not a complete program. It is intended to be part of a larger program. File equiv.cpp must not contain a 'main' function.

Equiv.h will contain function prototypes, but it must not contain any full function definitions. (There must be no function bodies.) Equiv.cpp must contain line

  #include "equiv.h"

before any function definitions.

Interface

The interface tells exactly what this module provides for other modules to use. Other modules must not use anything that is not described here. Briefly, the interface includes a type, ER, which is the type of an equivalence relation, and the following functions.

  ER   newER(const int n);
  void destroyER(ER R);
  bool equivalent(ER R, const int x, const int y);
  void merge(ER R, const int x, const int y);

Additionally, there is one function that is solely for debugging.

  void showER(const ER R, const int n);

There is one more function that is part of the implementation but not part of the interface. You can use it for debugging, though.

  int  leader(ER R, const int x);

A module that uses this tool can create an equivalence relation called R by saying

  ER R = newER(n);

where n is a positive integer. Initially, each number is in its own equivalence class; the equivalence classes are {1}, {2}, …, {n}. There are two operations that can be performed.

1. equivalent(R, x, y) returns a boolean value: true if x and y are currently in the same equivalence class in equivalence relation R, and false otherwise.

2. merge(R, x, y) modifies equivalence relation R by making x and y equivalent. It combines the equivalence class that contains x with the equivalence class that contains y. The merge function does not return an answer.

Example

For example, suppose that n = 7. The following shows a sequence of operations and shows the equivalence classes after each merge operation.

As you can see from the last step, it is allowed to merge two values that are already equivalent. That should cause no change.

An Algorithm for Managing an Equivalence Relation

You will not store the equivalence classes directly. Instead, you will store them implicitly, using the following ideas.  You are required to implement an equivalence manager in this way. You will receive no credit for a module that does not follow this algorithm.

1. Each equivalence class has a leader, which is one of the members of that equivalence class. You will create a function leader(R, x) that returns the current leader of the equivalence class that contains x in equivalence relation R.

   Two values are equivalent if they have the same leader.

2. There is another idea that is similar to a leader, but not exactly the same. Each value has a boss, which is a value in its equivalence class. For the purposes of describing the idea, let's write boss[x] for x's boss.

   1. If x is the leader of its equivalence class then boss[x] = 0, indicating that x has no boss.

   2. If x is not the leader of its equivalence class then boss[x] ≠ 0 and boss[x] is closer to the leader, in the following sense. If you look at the values x, boss[x], boss[boss[x]], boss[boss[boss[x]]], … then you will eventually encounter x's leader (just before you encounter 0).

Details on the algorithm

Use an array to store the bosses. Declaration

  typedef int* ER;

defines type ER to be the same as int*. Write the following functions.

1. newER(n) returns an equivalence relation as an array of n+1 integers. Allocate the array in the heap. This array will be used to store the bosses. If R has type ER then R[x] is x's boss.

   In C++, arrays start at index 0. You will use indices 1, … n, so you need to allocate n+1 slots. (Index 0 will not be used.)

   Initialize the array so that each value is a leader of its own equivalence class. That is, R[x] = 0 for x = 1, …, n.

2. leader(R, x) returns the leader of x in equivalence relation R. To compute x's leader, just follow the bosses up to the leader. Here is a sketch of a loop that finds the leader of x.

     y = x
     while(boss[y] != 0)
       y = boss[y]
     return y
   

   You can use a loop or recursion the leader function. Any function that wants to compute a leader must use the leader function to do that.

3. equivalent(R, x, y) returns true if x and y have the same leader in R. Notice that is not the same as saying that they have the same boss.

4. merge(R, x, y) merges the equivalence classes of x and y in R as follows. First, it finds the leaders x′ and y′ of x and y. If x′ and y′ are different (so x and y are not already in the same equivalence class) then y′ becomes the new boss of x′ and y′ becomes the leader of the combined equivalence class.

5. destroyER(R) deallocates R.

6. showER(R, n) prints the entire contents of array R (of size n) in a readable form for debugging. Be sure that showER shows both k and k's boss, for each k.

   Do not try to be too fancy here. Do not try to show the equivalence classes. ShowER is a debugging tool, and it should show the bosses.

Additional Requirements

It is important for you to follow the algorithms and design described here. Do not make up your own algorithm. Implement exactly the functions that are indicated. Keep the parameter order as shown here. If you change the parameter order, your module will not compile correctly with my tester. Do not add extra responsibilities to functions.

The definition of ER must only be in equiv.h. Do not duplicate that definition in equiv.cpp.

A Refinement Plan

#include "equiv.h"

// CSCI 2530
// Assignment: 3
// Author:     ***
// File:       equiv.h
// Tab stops:  none

// These #ifndef and #define lines make it so that, if this file is
// read more than once by the compiler, its body is skipped on all
// but the first time it is read.

#ifndef EQUIV_H
#define EQUIV_H

// An equivalence relation is an array of integers.
// So ER abbreviates int*.  

typedef int* ER;

// Public function prototypes

ER   newER      (const int n);
void destroyER  (ER R);
bool equivalent (ER R, const int x, const int y);
void merge      (ER R, const int x, const int y);

// The following is advertised here solely for debugging.  These must
// only be used for debugging.

void showER(const ER R, const int n);
int  leader(ER R, const int x);

#endif

#include "equiv.h"

  g++ -Wall -o test1 test1.cpp equiv.cpp

  ./test1

The following data pertain to products A and B, both of which are purchased by Susan. A is on vertical axis and B is on horizontal axis. Initially, the prices of the products and quantities consumed are:
PA= $8, QA= 5, PB= $6, QB= 10.
Susan has $100 to spend per time period. After an increase in price of B, the prices and quantities consumed are:
PA= $8, QA= 4, PB = $9, QB= 7.5.
Assume that Susan maximizes utility under both price conditions above. Also, note that if after the price increase enough income were given back to Susan to put her back on the original indifference curve, she would consume this combination of A and B:
QA= 10,QB= 4
a. Determine the change in consumption rate of good B due to (1) the substitution effect and (2) the income effect.
b. Determine if product B is a normal, inferior, or Giffengood. Explain.

Suppose that you have the following production function: ? = (100?^1/3)*(?^2/3) Where k represents the units of capital employed at production, L is the number of labor hours employed for total production. The wage rate equals to $18 per hour. The cost of capital equals $2,000 per unit.

a) What are the returns of scale for this production function? Prove it

b) You are currently employing 100 hours of labor. Calculate your total costs, average cost and marginal costs of labor and capital if K=100 units.

c) Which input is more productive? Should you employ more labor or more capital?

d) Draw the production function, MPK and MPL for the different values of K and L.

Question 25 pts

The hereditary/genetic material of living cells is

Group of answer choices

RNA

DNA

Either of the above, depending on the organism

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Question 26 pts

The genetic material of viruses is

Group of answer choices

RNA

DNA

Either of the above, depending on the virus

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Question 27 pts

The process in which cells take up free DNA from their environment is called

Group of answer choices

Transcription

Transformation

Translation

Transmutation

Question 28 pts

The Hershey-Chase experiment utilized bacteriophage to demonstrate that DNA, and not protein, is the genetic material by

Group of answer choices

Transforming bacteria and subjecting mice to different bacterial strains

Labeling proteins with ³²P and nucleic acids with ³⁵S

Using a combination of nucleases and nucleic acids under different conditions

Labeling nucleic acids with ³²P and proteins with ³⁵S

What is the KV in hand x-ray and why?

Needs the Kilovoltage and why (radiographic factor)