Tiffany is a model rocket enthusiast. She has been working on a pressurized rocket filled with nitrous oxide. According to her design, if the atmospheric pressure exerted on the rocket is less than 10 pounds/sq.in., the nitrous oxide chamber inside the rocket will explode. Tiff worked from a formula p=14.7e−h/10p=14.7e−h/10 pounds/sq.in. for the atmospheric pressure hh miles above sea level. Assume that the rocket is launched at an angle of αα above level ground at sea level with an initial speed of 1400 feet/sec. Also, assume the height (in feet) of the rocket at time tt seconds is given by the equation y(t)=−16t2+1400sin(α)ty(t)=−16t2+1400sin⁡(α)t. [UW]

a. At what altitude will the rocket explode?
b. If the angle of launch is αα = 12∘∘, determine the minimum atmospheric pressure exerted on the rocket during its flight. Will the rocket explode in midair?
c. If the angle of launch is αα = 82∘∘, determine the minimum atmospheric pressure exerted on the rocket during its flight. Will the rocket explode in midair?
d. Find the largest launch angle αα so that the rocket will not explode.

Bruzen Co. are trading at $39.50 a share.  BC does not pay dividends. The yearly standard deviation for BC’s returns is 43.05 percent (0.4305). The risk-free interest rate is 2.40 percent compounded continuously. A call option on Bruzen with a 45 strike price and nine months to expiration has a hedge ratio of 0.4678. The risk-adjusted probability that a nine-month 45 call option finishes in the money is 0.3170. Assuming the present value of a risk-free $1 due the end of nine months is $0.97995, determine the price of an American call option on Bruzen having strike price of $45 and nine months to expiration.

Suppose that you are part of the Management team at Porsche. Suppose that it is the end of December 2019 and a novel coronavirus that causes a respiratory illness was identified in Wuhan City, Hubei Province, China. The illness was reported to the World Health Organization and there is heightened uncertainty around the Globe. You (as part of the management team) are reviewing Porsche’s hedging strategy for the cash flows it expects to obtain from vehicle sales in North America during the calendar year 2020. Assume that Porsche’s management entertains three scenarios:

Scenario 1 (Expected): The expected volume of North American sales in 2020 is 35,000 vehicles.

Scenario 2 (Pandemic): The low-sales scenario is 50% lower than the expected sales volume.

Scenario 3 (High Growth): The high-sales scenario is 20% higher than the expected sales volume.

Assume, in each scenario, that the average sales price per vehicle is $85,000 and that all sales are realised at the end of December 2020. All variable costs incurred by producing an additional vehicle to be sold in North America in 2020 are billed in euros (€) and amount to €55,000 per vehicle. Shipping an additional vehicle to be sold in North America in 2020 are billed in € and amount to €3,000 per vehicle.

The current spot exchange rate is (bid-ask) $1.11/€ - $1.12/€ and forward bid-ask is $1.18/€ - $1.185/€. The option premium is €0.025, and option strike price is €0.922. Your finance team made the following forecasts about the exchange rates at the end of December 2020:

• bid-ask will be $1.45/€ - $1.465/€ if the investors (and speculators) consider the euro (€) a safe haven currency during the pandemic.

• bid-ask will be $0.88/€-$0.90/€ if the investors (and speculators) consider the U.S. dollar ($) a safe haven currency during the pandemic

5. Assume that the Scenario 2 (Pandemic) took place in 2020 and the U.S. dollar became a safe haven currency during the pandemic. What are your cash flows (profits) if you did not hedge, hedged using forward contracts, and hedged using option contracts?

6. Based on the calculations in Part B, do you believe that it is a good policy to hedge Porsche’s currency exposure? Why?

Prompt:

I am tired of this nation worrying about whether we are offending someone or their culture. I am not against immigration, nor do I hold a grudge against anyone who is seeking a better life by coming to America. However, there are a few things that those who have recently come to our country, and apparently some born here, need to understand. This idea of America being a multicultural community has served only to dilute our sovereignty and our national identity. As Americans, we have our own culture, our own society, our own language, and our own lifestyle. This culture has developed over centuries of struggles, trials, and victories by millions of men and women who have sought freedom. We speak ENGLISH, not Spanish, Portuguese, Arabic, Chinese, Japanese, Russian, or any other language. If you wish to become part of our society, learn the language! “In God we trust” is our national motto. We adopted this motto because Christian men and women, based on Christian principles, founded this nation, and this is clearly documented. It is entirely appropriate to display it on the walls of our schools. If God offends you, then I suggest you consider another part of the world as your new home, because God is part of our culture. We are happy with our culture and have no desire to change, and we really don’t care how you did things where you came from. This is OUR COUNTRY, our land, and our lifestyle. Our First Amendment gives every citizen the right to express opinions, and we will allow you every opportunity to do so. But once you are done complaining, whining, and griping about our pledge, our national motto, or our way of life, I highly encourage you to take advantage of one other great American freedom, THE RIGHT TO LEAVE. God Bless America.

Question:

Who is intended to be included in the "We" of the last paragraph of the letter?

Is our society more accepting of some immigrant groups versus others?

Suppose that you are part of the Management team at Porsche. Suppose that it is the end of December 2019 and a novel coronavirus that causes a respiratory illness was identified in Wuhan City, Hubei Province, China. The illness was reported to the World Health Organization and there is heightened uncertainty around the Globe.

You (as part of the management team) are reviewing Porsche’s hedging strategy for the cash flows it expects to obtain from vehicle sales in North America during the calendar year 2020. Assume that Porsche’s management entertains three scenarios:

Scenario 1 (Expected): The expected volume of North American sales in 2020 is 35,000 vehicles.

Scenario 2 (Pandemic): The low-sales scenario is 50% lower than the expected sales volume.

Scenario 3 (High Growth): The high-sales scenario is 20% higher than the expected sales volume.

Assume, in each scenario, that the average sales price per vehicle is $85,000 and that all sales are realised at the end of December 2020. All variable costs incurred by producing an additional vehicle to be sold in North America in 2020 are billed in euros (€) and amount to €55,000 per vehicle. Shipping an additional vehicle to be sold in North America in 2020 are billed in € and amount to €3,000 per vehicle.

The current spot exchange rate is (bid-ask) $1.11/€ - $1.12/€ and forward bid-ask is $1.18/€ - $1.185/€. The option premium is 2.5% of US$ strike price, and option strike price is $1.085/€. Your finance team made the following forecasts about the exchange rates at the end of December 2020:

• bid-ask will be $1.45/€ - $1.465/€ if the investors (and speculators) consider the euro (€) a safe haven currency during the pandemic.
• bid-ask will be $0.88/€-$0.90/€ if the investors (and speculators) consider the U.S. dollar ($) a safe haven currency during the pandemic

1. Assume that the Scenario 2 (Pandemic) took place in 2020 and the U.S. dollar became a safe haven currency during the pandemic. What are your cash flows if you did not hedge, hedged using forward contracts, and hedged using option contracts?   

2. Based on the calculations in Part B, do you believe that it is a good policy to hedge Porsche’s currency exposure? Why?

1. In the Operating System zoo describe the 4 different types of Operating Systems and describe them.

2. Describe what happens when booting a computer ?

3. What are System calls. Provide 6 file and directory system calls

Write a program using python that loops over each file in a specified directory and checks the size of each file.You should create 2-tuple with the filename and size, should append the 2-tuple to a list, and then store all the lists in a dictionary.  

A straight bar magnet is initially 4 cm long, with the north pole on the right and the south pole on the left. If you cut the magnet in half, the right half will:

A. Still contain a north pole on the right and a new south pole on the left.


B. Only contain a south pole.


C. Only contain a north pole.

I NEED THIS CODE FOR C++ USING MONITORS PLEASE

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>

#define THREADS 10 // Number of Thread

//bridge declared with array of character and integer value
void Bridge(char array[], int value);

// Global Variable
int North = 1; //For North Number
int South = 1; //For South Number
pthread_mutex_t mutex1 = PTHREAD_MUTEX_INITIALIZER; // Setting Up MUTEX for lock

//Thread for North farmer
void NorthFarmer(){
pthread_mutex_lock(&mutex1);
char array[5] = "North"; // North
printf("%s Tunbridge #%d farmer can cross the bridge\n", array, North);
Bridge(array, North);
printf("%s Tunbridge #%d farmer has left the bridge\n\n", array, North);
North++;
pthread_mutex_unlock(&mutex1);
pthread_exit(0);
}
//Thread for South farmer
void SouthFarmer(){
pthread_mutex_lock(&mutex1);
char array[5] = "South";
printf("%s Tunbridge #%d farmer can cross the bridge\n", array, South);
Bridge(array, South);
printf("%s Tunbridge #%d farmer has left the bridge\n\n", array, South);
South++;
pthread_mutex_unlock(&mutex1);
pthread_exit(0);
}

//void method for bridge
void Bridge(char array[], int value){
srand(time(NULL));
printf("%s Tunbridge #%d is traveling on the bridge...\n", array, value);
int randomnumber = rand() % 4;
sleep(randomnumber);
}

//main method
int main(){
pthread_t North[THREADS]; // North Thread
pthread_t South[THREADS]; // South Thread
pthread_mutex_init(&mutex1,NULL);

for(int i = 0; i < THREADS; i++){
int CreateFirst = pthread_create(&North[i], NULL, NorthFarmer, NULL);
int CreateSecond = pthread_create(&South[i], NULL, SouthFarmer, NULL);
if(CreateFirst != 0 || CreateSecond != 0){
fprintf(stderr, "Thread Create Failed");
return 1;
}
}

for(int i = 0; i < THREADS; i++){
int JoinFirst = pthread_join(North[i],NULL);
int JoinSecond = pthread_join(South[i],NULL);
if(JoinFirst != 0 || JoinSecond != 0){
fprintf(stderr, "Join Failed");
return 1;
}
}

//destroy the mutex lock
pthread_mutex_destroy(&mutex1);
return 0;
}

I NEED THIS CODE FOR C++ IUSING SEMAPHORES PLEASE

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <pthread.h>

#define THREADS 10 // Number of Thread

//bridge declared with array of character and integer value
void Bridge(char array[], int value);

// Global Variable
int North = 1; //For North Number
int South = 1; //For South Number
pthread_mutex_t mutex1 = PTHREAD_MUTEX_INITIALIZER; // Setting Up MUTEX for lock

//Thread for North farmer
void NorthFarmer(){
pthread_mutex_lock(&mutex1);
char array[5] = "North"; // North
printf("%s Tunbridge #%d farmer can cross the bridge\n", array, North);
Bridge(array, North);
printf("%s Tunbridge #%d farmer has left the bridge\n\n", array, North);
North++;
pthread_mutex_unlock(&mutex1);
pthread_exit(0);
}
//Thread for South farmer
void SouthFarmer(){
pthread_mutex_lock(&mutex1);
char array[5] = "South";
printf("%s Tunbridge #%d farmer can cross the bridge\n", array, South);
Bridge(array, South);
printf("%s Tunbridge #%d farmer has left the bridge\n\n", array, South);
South++;
pthread_mutex_unlock(&mutex1);
pthread_exit(0);
}

//void method for bridge
void Bridge(char array[], int value){
srand(time(NULL));
printf("%s Tunbridge #%d is traveling on the bridge...\n", array, value);
int randomnumber = rand() % 4;
sleep(randomnumber);
}

//main method
int main(){
pthread_t North[THREADS]; // North Thread
pthread_t South[THREADS]; // South Thread
pthread_mutex_init(&mutex1,NULL);

for(int i = 0; i < THREADS; i++){
int CreateFirst = pthread_create(&North[i], NULL, NorthFarmer, NULL);
int CreateSecond = pthread_create(&South[i], NULL, SouthFarmer, NULL);
if(CreateFirst != 0 || CreateSecond != 0){
fprintf(stderr, "Thread Create Failed");
return 1;
}
}

for(int i = 0; i < THREADS; i++){
int JoinFirst = pthread_join(North[i],NULL);
int JoinSecond = pthread_join(South[i],NULL);
if(JoinFirst != 0 || JoinSecond != 0){
fprintf(stderr, "Join Failed");
return 1;
}
}

//destroy the mutex lock
pthread_mutex_destroy(&mutex1);
return 0;
}