You plan to take a trip to the moon. Since you do not have a traditional spaceship with rockets, you will need to leave the earth with enough speed to make it to the moon. Some information that will help during this problem:

m_earth = 5.9742 x 10²⁴ kg
r_earth = 6.3781 x 10⁶ m
m_moon = 7.36 x 10²² kg
r_moon = 1.7374 x 10⁶ m
d_{earth to moon} = 3.844 x 10⁸ m (center to center)
G = 6.67428 x 10^-11 N-m²/kg²

1)

On your first attempt you leave the surface of the earth at v = 5534 m/s. How far from the center of the earth will you get?

2)

Since that is not far enough, you consult a friend who calculates (correctly) the minimum speed needed as v_min = 11068 m/s. If you leave the surface of the earth at this speed, how fast will you be moving at the surface of the moon? Hint carefully write out an expression for the potential and kinetic energy of the ship on the surface of earth, and on the surface of moon. Be sure to include the gravitational potential energy of the earth even when the ship is at the surface of the moon!

1.) The method of tree ring dating gave the following years A.D. for an archaeological excavation site. Assume that the population of x values has an approximately normal distribution.

(a) Use a calculator with mean and standard deviation keys to find the sample mean year x and sample standard deviation s. (Round your answers to the nearest whole number.)

(b) Find a 90% confidence interval for the mean of all tree ring dates from this archaeological site. (Round your answers to the nearest whole number.)

2.) How much does a sleeping bag cost? Let's say you want a sleeping bag that should keep you warm in temperatures from 20°F to 45°F. A random sample of prices ($) for sleeping bags in this temperature range is given below. Assume that the population of x values has an approximately normal distribution.

(a) Use a calculator with mean and sample standard deviation keys to find the sample mean price x and sample standard deviation s. (Round your answers to two decimal places.)

(b) Using the given data as representative of the population of prices of all summer sleeping bags, find a 90% confidence interval for the mean price μ of all summer sleeping bags. (Round your answers to two decimal places.)

3.) How much do wild mountain lions weigh? Adult wild mountain lions (18 months or older) captured and released for the first time in the San Andres Mountains gave the following weights (pounds):

Assume that the population of x values has an approximately normal distribution.

(a) Use a calculator with mean and sample standard deviation keys to find the sample mean weight x and sample standard deviation s. (Round your answers to one decimal place.)

(b) Find a 75% confidence interval for the population average weight μ of all adult mountain lions in the specified region. (Round your answers to one decimal place.)

The apparatus below contains ammonia, neon, and hydrogen chloride gases at a temperature
of 27ºC. The valve in the center is opened and the ammonia reacts with the hydrogen chloride:
NH3(g) + HCl(g) → NH4Cl(s)
Neon does not react.
a) What mass of ammonium chloride will be formed?
b) What will be the total pressure in the apparatus after the reaction is complete,
assuming the temperature remains constant?

|volume = 635 mL valve
NH3 pressure = 0.875 atm
Ne pressure = 0.893 atmvolume = 429 mL
HCl pressure =
1.613 atm

The recent tariff increases have affected the American economy and have driven supply chains to make quick changes as they scramble to help offset the added costs of importing goods... mainly how these tariffs affect Americans in LUMBER AND STEEL industries.

I need an answer for both industries:

Q1: If I were a major Steel business owner/ producer, why would I care how these tariffs are affecting Supply Chains? (250 words)

Q2: If I were a major Lumber business owner/ producer, why would I care how these tariffs are affecting Supply Chains? (250 words)

Please answer the question to the point. Thank you

What intermolecular force(s) is/are present in acetone that it would be a liquid at room temperature? Is there more than one force? If yes, which is stronger and which is weaker?

Merrill Corp. has the following information available about a potential capital investment:   

Assume straight line depreciation method is used.  


Required:
1. Calculate the project’s net present value. (Future Value of $1, Present Value of $1, Future Value Annuity of $1, Present Value Annuity of $1.) (Use appropriate factor(s) from the tables provided. Do not round intermediate calculations. Round the final answer to nearest whole dollar.)

         

2. Without making any calculations, determine whether the internal rate of return (IRR) is more or less than 10 percent.

    

   

3. Calculate the net present value using a 13 percent discount rate. (Future Value of $1, Present Value of $1, Future Value Annuity of $1, Present Value Annuity of $1.) (Use appropriate factor(s) from the tables provided. Do not round intermediate calculations. Round the final answer to nearest whole dollar.)

       

4. Without making any calculations, determine whether the internal rate of return (IRR) is more or less than 13 percent.

    

you are evaluating an investment that requires $2,000 upfront and pays $500 at the end of each of the first 2 years and an additional lump sum of $1000 at the end of year 2. What would happen to the IRR if the annual payment at the end of the first year go down from $500 to $300 and the annual payment at the end of the second year stays at $500?

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.

• 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.

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.

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.

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:

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

1- a. What mass of nitrogen has the same volume as 15.00 grams of hydrogen at -25^oC 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)

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