Questions
Blocks A (mass 3.00 kg ) and B (mass 14.00 kg , to the right of...

Blocks A (mass 3.00 kg ) and B (mass 14.00 kg , to the right of A) move on a frictionless, horizontal surface. Initially, block B is moving to the left at 0.500 m/s and block A is moving to the right at 2.00 m/s. The blocks are equipped with ideal spring bumpers. The collision is headon, so all motion before and after it is along a straight line. Let +x be the direction of the initial motion of A.

Part A) Find the maximum energy stored in the spring bumpers.

Part B) Find the velocity of block A when the energy stored in the spring bumpers is maximum

Part C) Find the velocity of block B when the energy stored in the spring bumpers is maximum.

Part D) Find the velocity of block A after the blocks have moved apart.

Part E) Find the velocity of block B after the blocks have moved apart.

In: Physics

Imagine that you have been hired to advise Qantas on their future after the COVID-19 crisis...

  • Imagine that you have been hired to advise Qantas on their future after the COVID-19 crisis
  • Find evidence of macroenvironmental trends from five PESTN categories (Demographic, Cultural, Economic, Political, Technological, Natural) that are likely to impact Qantas in 2021 (i.e. next year). Remember that each trend should be something external to Qantas. The evidence should be from credible sources.
  • How will each identified trend impact on Qantas' business? Is it an opportunity or a threat? Why?
  • What action would you recommend to Qantas as a result of your analysis? Ensure that you justify your recommendations.

In: Economics

Describe the Rivalry Among Competing Sellers in the Organic Packaged Food Industry. Include:   Who are the...

Describe the Rivalry Among Competing Sellers in the Organic Packaged Food Industry.

Include:  

Who are the rivals?

Rate the force as Strong, Medium, or Weak and explain why you gave it that rating.

In: Operations Management

Please answer this very simple conceptual physics question: Regarding a parallel plate capacitor-- Explain something different...

Please answer this very simple conceptual physics question: Regarding a parallel plate capacitor-- Explain something different between the potential inside the plates compared to potential outside the plates.

In: Physics

BestBuy plans to have an end of the season sale on videogames and High Definition TVs....

BestBuy plans to have an end of the season sale on videogames and High Definition TVs. After a focus group study, their marketing team found that they have four different types of customers, each with their own respective reservation price. The reservation prices are as listed below:

Customer

TV

Videogame

A

$1000

$500

B

$800

$450

C

$600

$375

D

$500

$300

For simplicity, assume that the marginal cost for producing any of these products is $0, and there is only one representative customer of each type.

(a) If BestBuy were to sell TV and videogames separately, what price should it set for each product in order to maximize its profit?

(b) BestBuy paid an outside consulting firm about its marketing strategy. The consultant recommended that BestBuy bundle TV and videogame as a package rather than selling them separately. Is the consultant correct? Why or why not? What is the profit of pure bundling? Is it higher or lower compared with the separate selling scenario in (A)? Are customers’ reservation prices of TV and videogames negatively or positively correlated?

(c) Suppose BestBuy has perfect information about the reservation price of each customer. It adopts a first-degree (perfect) price discrimination policy. What prices should it charge to maximize profit? What is the profit under this strategy? Is this higher than the profit in (a) or (b)?

please help Thank you

In: Economics

1- a. What mass of nitrogen has the same volume as 15.00 grams of hydrogen at...

1- a. What mass of nitrogen has the same volume as 15.00 grams of hydrogen at -25oC and .750atm?

b. What is the density of an unknown gas at 258 K and 1.500 atm whose molar mass is 126 g/mole.

(Please type the answers, don't write them down on a paper)

In: Chemistry

Write a method called "twoStacksAreEqual" that takes as parameters two stacks of integers and returns true...

Write a method called "twoStacksAreEqual" that takes as parameters two stacks of integers and returns true if the two stacks are equal and that returns false otherwise. To be considered equal, the two stacks would have to store the same sequence of integer values in the same order. Your method is to examine the two stacks but must return them to their original state before terminating. You may use one stack as auxiliary storage.

import java.util.Enumeration;

import java.util.LinkedList;

import java.util.Queue;

import java.util.Stack;

//Name,Class,Date..etc.. Header

public class Assignment6 {

public static void main(String[] args) {

//testSeeingThreeMethod();

//testTwoStacksAreEqualMethod();

//testIsMirrored();

}

public static void seeingThree(Stack<Integer> s) {

/*********Write Code Here************/

}

public static boolean twoStacksAreEqual(Stack<Integer> s1, Stack<Integer> s2)

{

/*********Write Code Here************/

}

public static boolean isMirrored(Queue<Integer> q) {

/*********Write Code Here************/

}

private static void testIsMirrored() {

Queue<Integer> myQueueP = new LinkedList<Integer>();;

for (int i = 0; i < 5; i++)

{

System.out.print(i);

myQueueP.add(i);

}

for (int i = 3; i >= 0 ; i--)

{

System.out.print(i);

myQueueP.add(i);

}

System.out.println();

System.out.println(isMirrored(myQueueP) + " isMirrord");

}

private static void testTwoStacksAreEqualMethod() {

Stack<Integer> myStack1 = new Stack<Integer>();

Stack<Integer> myStack2 = new Stack<Integer>();

Stack<Integer> myStack3 = new Stack<Integer>();

Stack<Integer> myStack4 = new Stack<Integer>();

for (int i = 0; i < 5; i++)

{

myStack1.push(i);

myStack2.push(i);

myStack4.push(i);

}

for (int i = 0; i < 6; i++)

{

myStack3.push(i);

}

System.out.println(twoStacksAreEqual(myStack1,myStack2) + " Same Stack

");

System.out.println(twoStacksAreEqual(myStack3, myStack4) + " Not Same

Stack");

}

private static void testSeeingThreeMethod() {

Stack<Integer> myStack = new Stack<Integer>();

for (int i = 0; i < 5; i++)

{

myStack.push(i);

}

System.out.println();

print(myStack);

seeingThree(myStack);

print(myStack);

}

private static void print(Stack<Integer> s) {

Enumeration<Integer> e = s.elements();

while ( e.hasMoreElements() )

System.out.print( e.nextElement() + " " );

System.out.println();

}

} //end of Assignment6

In: Computer Science

explain how during elementary and middle school, boys and girls may be treated differently by teachers,...

explain how during elementary and middle school, boys and girls may be treated differently by teachers, affected by educational materials, experience cooperative learning techniques either in a positive or negative sense , and other wise experience differences. Explain the impact that these types of differential treatment can have on the two genders; both in a negative and positive sense. Do you remember anything from your elementary or middle school days that you believe impacted you in a positive or negative way today. Please explain.

In: Psychology

Prepare the journal entries for the following transactions. Paris Cosmetics issues €2,500 shares of €200 par...

Prepare the journal entries for the following transactions.

  1. Paris Cosmetics issues €2,500 shares of €200 par value preference stock at €317 cash per share on 1/1/2017. The shares are 5% and cumulative.
  2. Paris Cosmetics issues 120,000 shares of €2 par value share of ordinary stock at €27 cash per share on 1/1/2017.
  3. On March 1, Paris Cosmetics repurchases 6,200 shares of the previously issued ordinary shares at €43 cash per share.
  4. The company declares and pays cash dividends amounting to €10,000. (the company is new, so no arrearage exists at this point).
  5. How much is paid per share to the preference shares? To the ordinary shares?
  6. The company repurchases 5,000 shares of the previously issued ordinary shares at €25 per share.
  7. The company declares and pays cash dividends amounting to €41,000.
  8. How much is paid per share to the preference shares? To the ordinary shares?
  9. The company sells all of the treasury stock for €30 cash per share.
  10. The Company declares and pays a cash dividend of €55,000.
  11. How much is paid per share to the preference shares? To the ordinary shares?

Show all your work.

In: Accounting

Suppose a potential biological control agent was found to attack an indigenous Drosophila species in California,...

Suppose a potential biological control agent was found to attack an indigenous Drosophila species in California, in quarantine laboratory screening work. The US Fish and Wildlife Service oppose release of the biocontrol agent because of this, suggesting that the risks are too great in terms of impacting an endemic species. What risk assessment options could you employ in further work to determine whether the biocontrol agent is safe to release? How would you explain the measurement of risk to the FWS and the public in general?

In: Biology

What makes emerging markets attractive for international business? Discuss emerging markets as target markets, as platforms...

What makes emerging markets attractive for international business? Discuss emerging markets as target markets, as platforms for manufacturing, and as sourcing destinations.

In: Economics

1. Which tissue is made up of motor proteins that uses ATP and produces movement? a.)...

1. Which tissue is made up of motor proteins that uses ATP and produces movement?

a.) Nervous tissue

b.) epithelium tissue

c.) skeletal tissue

d.) muscular tissue

2. What is true about hyaline cartilage?

a.) Collagen fibers are thick and visible

b.) Collagen fibers are present but not visible

c.) it makes adult skeleton

d.) it contains more elastic fibers

3. Which of the following describes reticular connective tissue?

a.) Tissue is made up of loose arrangement of collagen fibers.

b.) tissue contains less matrix and made up of cells that contains high fat stored

c.) tissue is made up of very fine fibers and is usually present in spleen and bone marrow

d.) tissue is made up large amount of collagen fibers

d.) it contains more elastic fibers

3.   

In: Anatomy and Physiology

Marwick’s Pianos, Inc., purchases pianos from a large manufacturer for an average cost of $1,493 per...

Marwick’s Pianos, Inc., purchases pianos from a large manufacturer for an average cost of $1,493 per unit and then sells them to retail customers for an average price of $3,100 each. The company’s selling and administrative costs for a typical month are presented below:

Costs Cost Formula
Selling:
Advertising $ 964 per month
Sales salaries and commissions $ 4,771 per month, plus 6% of sales
Delivery of pianos to customers $ 62 per piano sold
Utilities $ 650 per month
Depreciation of sales facilities $ 4,981 per month
Administrative:
Executive salaries $ 13,516 per month
Insurance $ 710 per month
Clerical $ 2,467 per month, plus $42 per piano sold
Depreciation of office equipment $ 890 per month

During August, Marwick’s Pianos, Inc., sold and delivered 61 pianos.

Required:

1. Prepare a traditional format income statement for August.
2. Prepare a contribution format income statement for August. Show costs and revenues on both a total and a per unit basis down through contribution margin.

In: Accounting

A partnership is considering possible liquidation because one of the partners (Bell) is personally insolvent. Profits...

A partnership is considering possible liquidation because one of the partners (Bell) is personally insolvent. Profits and losses are divided on a 4:3:2:1 basis, respectively. Capital balances at the current time are

Bell, capital $ 55,000
Hardy, capital 58,000
Dennard, capital 15,000
Suddath, capital 82,000

Bell’s creditors have filed a $23,000 claim against the partnership’s assets. The partnership currently holds assets of $320,000 and liabilities of $110,000. If the assets can be sold for $200,000, what is the minimum amount that Bell’s creditors would receive?

In: Accounting

A fisherman and his young nephew are in a boat on a small pond. Both are...

A fisherman and his young nephew are in a boat on a small pond. Both are wearing life jackets. The nephew is holding a large floating helium filled balloon by a string. Consider each action below independently, and indicate whether the level of the water in the pond R-Rises, F-Falls, S-Stays the Same, C-Can't tell. (If in the first the level Rises, and in the second it Falls, and for the rest one Cannot tell, enter RFCCC)

A) The fisherman lowers himself in the water and floats on his back
B) The fisherman fills a glass with water from the pond and drinks it.
C) The nephew gets in the water, looses his grip on the string, letting the balloon escape upwards.
D) The fisherman knocks the tackle box overboard and it sinks to the bottom.
E) The nephew pops the balloon.

Hint: Think "Archimedes Principle". How does the volume of fluid displaced by a body which `floats' differ from that for a body which sinks?

In: Physics