In attempting to pass the puck to a teammate, a hockey player gives it an initial speed of 1.94 m/s. However, this speed is inadequate to compensate for the kinetic friction between the puck and the ice. As a result, the puck travels only one-half the distance between the players before sliding to a halt. What minimum initial speed should the puck have been given so that it reached the teammate, assuming that the same force of kinetic friction acted on the puck everywhere between the two players?
can you also please do the same question but use 1.02 m/s so,
In attempting to pass the puck to a teammate, a hockey player gives it an initial speed of 1.02 m/s. However, this speed is inadequate to compensate for the kinetic friction between the puck and the ice. As a result, the puck travels only one-half the distance between the players before sliding to a halt. What minimum initial speed should the puck have been given so that it reached the teammate, assuming that the same force of kinetic friction acted on the puck everywhere between the two players?
This would help so much if you could answer both 1.94 and 1.02 m/s.. THANKS!
In: Physics
In: Biology
Consider two identical point sources a distance d apart emitting identical waves of wavelength λ, but in this problem, one of the sources is phase shifted from the other by 180 degree.
A) What is the intensity as a function of angle?
B) In which directions is the intensity a maximum?
C) In which directions is the intensity a minimum?
D) What is the minimum intensity?
In: Physics
An injured monkey sits perched on a tree branch 6.0 m above the ground, while a wildlife veterinarian is kneeling down in the bushes 86.5 m away attempting to subdue the monkey with a tranquilizer gun. The vet knows that the moment the gun fires the monkey will be frightened and fall down from the branch. What angle up from the ground must the veterinarian aim the gun so that the tranquilizer dart will hit the falling monkey?
In: Physics
5. Laser-induced interstitial thermotherapy (LITT) is one of the most recent developments in laser therapies for cancer treatment. Discuss the principal idea of LITT, its most important applications, and how it can be used for minimally invasive surgery.
In: Physics
In the table below, exchange rate is defined as US dollars per Euro, E$/€. Given the information below, using UIP (in approximate form), fill in the blanks marked with letters. Round your answers to 3 decimals. Interest Rate on Dollar Deposit (annual) Interest Rate on Euro Deposit (annual) Spot Exchange Rate, E$/€ (today) Expected Future Exchange Rate, Ee$/€ (in one year) Expected Rate of Change in Exchange Rate (Ee$/€-E$/€)/E$/€ Expected Dollar Return on Euro Deposit (annual) Investors Prefer 0.025 (2.5%) 0.005 (0.5%) 1.10 1.326 0.205 (20.5%) 0.21 A 0.025 0.005 (0.5%) B 1.326 0.105 C D 0.025 0.005 E 1.326 F G Indifferent 0.025 0.005 1.4 1.326 H I J
In: Economics
Excessive blood loss during child birth can result in an
inadequate amount of blood volume in mothers body. With decreased
blood volume and pressure, the heart becomes incapable of pumping
necessary amount of blood to all the tissues resulting in damage to
the brain specifically the pituatary gland. Sheehan's syndrome
occurs in wome when the pituatry gland reduces the amount of
hormones it secrets after child birth.
Sheehan's syndrome is initially suspected when a mother is unable
to produce milk after having undergone a difficult child birth
resulting in shock from blood loss. Since difficulty with lactation
is not an uncommon occurence, many individuals affected are not
diagnosed.
Maria resting gave child birth and is having difficulty with
lactation, furthermore she is experiencing weight gain and hair
loss. She is also complaining about constant faitgure and needing
to wear additional layers to keep warm.
1) Which hormone secreted from the pituatry gland is responsible
for wright gain, hair loss, and fatigue? Describe the hormone feed
back loop for this individual.
2) Upon hearing about Marias symptoms, her doctor ordered blood
tests to determine her blood glucose and sodium levels. Identify
the hormons and the gland involved in regulating blood glucose and
sodium. Would the expected blood glucose and sodium levels be high
or low if Marina is affected by Sheehans syndrom
In: Biology
In: Biology
More on how electrons move, and some tools you can use
to ask your own questions:
You have become interested in the anaerobic respiration pathways of
Desulfovibrio vulgaris, and specifically in the question of whether
or not it can utilize sulfate as a terminal electron acceptor. To
see whether it might use sulfate you have decided first to consult
the genome sequence, focusing on D. vulgaris strain Hildenborough.
A database of all the D. vulgaris str. Hildenborough genes (and
complete genome sequences for many other microbial species) is
maintained at the National Center for Biotechnology
Information.
A. Navigate to the NCBI website and use the tools you find there to see whether D. vulgaris str. Hildenborough has genes encoding sulfate adenylyltransferase, adenylylsulfate reductase, and sulfite reductase (dissimilatory type). If you find them, provide the ‘locus tag’ given for one or more of the protein subunits (DVU####). If you do not find genes for these enzymes, consult with your T.A. or with a colleague from the class.
B. On discovering how easy it is to address such questions using the tools available at NCBI, you realize you’d also like to know whether or not D. vulgaris str. Hildenborough can use nitrate to support respiration. Key enzymes are nitrate reductase and nitrite reductase. Use the NCBI site to determine whether the D. vulgaris genome encodes genes for nitrate reductase and nitrite reductase. Provide the locus tags if you find the genes; if you do not find them, consult with your T.A. or a colleague from the class.
C. If D. vulgaris uses sulfate as a terminal electron acceptor and conserves energy by the accepted mechanism (section 13.18), then it is expected to have a low-potential periplasmic cytochrome, cytochrome c3. Use the tools available on the NCBI site to search for the cytochrome c3 gene. Restrict your search to strain Hildenborough. You should find several genes that encode various cytochromes c3. One of these is of particular interest because it is likely to interact with a hydrogenase. Click on the link for DVU2524, and on the page that opens, in the ‘Genomic context’ area, mouse over the genes adjacent to DVU2524. What genes do you find adjacent to DVU2524? (Provide the names of enzyme(s) they encode, not just locus tags.)
D. Another cytochrome c is thought to form part of the cytochrome hmc complex—and is named accordingly. Identify this one (provide the DVU number).
E. By using appropriate links on the NCBI website (which you are feeling impelled to explore at length now that you realize how much useful stuff is there), find the amino acid sequence of the cytochrome c protein that is encoded in the hmc operon (hint: on the hmc gene page, scroll down to the “mRNA and protein” part). Paste this sequence into your problem set answers (it should start with MSEDV...). It’s helpful to select “FASTA” at the top of the page, to obtain the sequence in FASTA format, which has a carat and the protein name on the first line.
F. Impressed by the unusual size of this cytochrome c, you want to find out what is known about its structure. Copy its amino acid sequence, then navigate to the “protein BLAST” page of the NCBI website and paste the sequence into the appropriate box, using FASTA format (retaining the line with the carat). Carry out a protein-protein BLAST search, specifying that the search should use the protein structure database, called the pdb (if you don’t, it will search the much larger database of nonredundant protein sequences). The search is initiated by the “BLAST” button lower down on the page. You should find some strong ‘hits’ to protein sequences in the pdb. Make a note of the pdb “accession number” for the top hit (given in the ‘accession’ column). Take just the first four characters (the characters _A are not necessary). Write this accession in your problem set answer.
G. Navigate to the RCSB website. In the search box, enter the four-character code (the accession number) you’ve just found and press return, An image of the protein should come up. Click on the “structure” link next to “3D view” below the image. You can manipulate the structure by moving the cursor on it while holding the mouse button down.
i. How would you describe the overall shape of this protein?
ii. What else do you find remarkable about this protein?
iii. Given its structure and the prosthetic groups present, what sort of function(s) do you think the protein might be suited for?
Note that if you’re used to viewing macromolecular structures in another program, you can also just download the coordinates of the protein structure from the RCSB page.
In: Biology
a 0.426-kg block sliding from A to B along a frictionless surface. When the block reaches B, it continues to slide along the horizontal surface BC where the kinetic frictional force acts. As a result, the block slows down, coming to rest at C. The kinetic energy of the block at A is 39.0 J, and the heights of A and B are 12.4 and 6.10 m above the ground, respectively. (a) What is the value of the kinetic energy of the block when it reaches B? (b) How much work does the kinetic frictional force do during the BC segment of the trip?
In: Physics
Activity Rates and Product Costs using Activity-Based Costing
Garfield Inc. manufactures entry and dining room lighting fixtures. Five activities are used in manufacturing the fixtures. These activities and their associated budgeted activity costs and activity bases are as follows:
Activity |
Budgeted Activity Cost |
Activity Base |
|
| Casting | $258,500 | Machine hours | |
| Assembly | 188,640 | Direct labor hours | |
| Inspecting | 27,300 | Number of inspections | |
| Setup | 57,000 | Number of setups | |
| Materials handling | 35,260 | Number of loads | |
Corporate records were obtained to estimate the amount of activity to be used by the two products. The estimated activity-base usage quantities and units produced follow:
| Activity Base | Entry | Dining | Total | |||
| Machine hours | 5,480 | 4,860 | 10,340 | |||
| Direct labor hours | 4,720 | 7,070 | 11,790 | |||
| Number of inspections | 1,600 | 500 | 2,100 | |||
| Number of setups | 310 | 70 | 380 | |||
| Number of loads | 650 | 170 | 820 | |||
| Units produced | 10,800 | 5,400 | 16,200 | |||
a. Determine the activity rate for each activity. If required, round the rate to the nearest dollar.
| Activity | Activity Rate | |
| Casting | $ | per machine hour |
| Assembly | $ | per direct labor hour |
| Inspecting | $ | per inspection |
| Setup | $ | per setup |
| Materials handling | $ | per load |
b. Use the activity rates in (a) to determine the total and per-unit activity costs associated with each product. Round the per unit rates to the nearest cent.
| Product | Total Activity Cost | Activity Cost Per Unit |
| Entry Lighting Fixtures | $ | $ |
| Dining Room Lighting Fixtures | $ | $ |
Please explain step by step how you got part B
In: Accounting
why do I keep getting errors?
#include "stdafx.h"
#include <iostream>
#include <iomanip>
#include <string>
using namespace std;
int _tmain(int argc, _TCHAR* argv[])
{
const int CHEESE_PIZZA = 11;
const int SPINACH_PIZZA = 13;
const int CHICKEN_PIZZA = 14;
cout << "Assignment 07" << endl;
cout << "Program written by Carol" << endl <<
endl;
cout << " *********** MENU ***********" << endl;
cout << setw(9) << "ITEM" << setw(20) << "PRICE" << endl;
cout << " (1) Cheese Pizza" << setw(8) << "$"
<< CHEESE_PIZZA << endl;
cout << " (2) Spinach Pizza" << setw(7) << "$"
<< SPINACH_PIZZA << endl;
cout << " (3) Chicken Pizza" << setw(7) << "$"
<< CHICKEN_PIZZA << endl;
cout << endl;
cout << "What do you want? ";
int option;
cin >> option;
cout << "How many? ";
int quantity;
cin >> quantity;
int price;
switch (option)
{
case 1:
price = CHEESE_PIZZA;
break;
case 2:
price = SPINACH_PIZZA;
break;
case 3:
price = CHICKEN_PIZZA;
break;
default:
cout << "Please select valid item from menu. ";
break;
return 1;
}
int amount = price * quantity;
cout << "Your Bill: $ " << amount << endl;
cout << endl;
return 0;
In: Computer Science
Compare the State Pattern and the Strategy Pattern. What is the main difference? Explain their uses and provide an example of where you would use the State Pattern
In: Computer Science
C++ programming
please i need all codes in this homework
Homework
1) Call foo() three times to print below.
1 2
3 4
5 6
2) Modify the calculator in lect16 as follows using argument-passing functions.
....................
// function prototypes
void show_menu();
void add(int x, int y);
void sub(int x, int y);
.............
// function definitions
void main(){
int s;
for(;;){
show_menu();
scanf(“%d”, &s);
if (s==1){
int x, y;
printf(“enter two numbers\n”);
scanf(“%d %d”, &x, &y);
add(x, y);
}else if (s==2){
...............
}
.................
}
}
void show_menu(){
printf(“1. add 2. sub 3. square 4. factor_of 5. power 6. factor 7. quit\n”);
printf(“select operation\n”);
}
void add(int x, int y){
// print x+y
int z;
z=x+y;
printf(“the sum is %d\n”, z);
}
void sub(int x, int y){
// print x-y
.........
}
void square(int x){
// print x*x
........
}
void power(int x, int y){
// print x*x*...*x (y times)
........
}
void factor_of(int x, int y){
// if x is a factor of y, print “x is a factor of y”
// otherwise “x is not a factor of y”
// for example if x=3, y=12, x is a factor of y
// because 12%3 = 0
.......
}
void factor(int x){
// display all factors of x
...................
}
In: Computer Science
Answer the following question in Java.
Create a class called Movie. Move should contain:
Two instance variables: title of type String and rating of type int. Remember to encapsulate them.
Two constructors: One that takes a tile and rating as arguments and a copy constructor.
Getter and setter methods for both instance variables.
A method called getCategory that takes no arguments and return something of type char.
Additional information about the Movie class:
Title: The instance should always store the string in all upper case, if the method is called with a string that contains any lower case characters, the lower case characters should be converted to upper case.
Rating must be a value between 0 and 10 (inclusive). If the rating provided is outside of that range, the rating should remain unchanged.
getCategory: A movie is considered A category if its rating is 9 or 10, B category if the rating is 7 or 8, C category if the rating is 5 or 6, D category if the rating is 3 or 4 and F category otherwise.
In: Computer Science