A new radio station must register its frequency at Malaysian Communications and Multimedia Commission (MCMC). The free slot only available at 93.0 MHz and it can broadcast its channel within a bandwidth of 200 kHz. If the frequency deviation for modulation is 18 kHz: (i) (ii) what is the maximum modulating frequency to achieve modulation index of 3? [C3, SP4] how much is the bandwidth used if the maximum modulating frequency is 18 kHz? [C3, SP4] (iii) sketch the FM signal spectra if the modulating index is 0.5 and assuming that the amplitude of the carrier signal is 10 V. [C3, SP4]
Answers
To achieve a modulation index of 3, the maximum modulating frequency would be 54 kHz. The bandwidth used in this case would be 108 kHz. When the modulating index is 0.5 and the carrier signal amplitude is 10 V, the FM signal spectra can be sketched with the help of Bessel functions, resulting in a series of sidebands around the carrier frequency.
The modulation index (m) is defined as the ratio of the frequency deviation (Δf) to the maximum modulating frequency (fm). In this case, the frequency deviation is given as 18 kHz, and we need to find the maximum modulating frequency to achieve a modulation index of 3. Using the formula for modulation index, we can rearrange it to find the maximum modulating frequency: fm = Δf / m. Substituting the given values, we get fm = 18 kHz / 3 = 6 kHz. However, the maximum modulating frequency should be within the bandwidth of 200 kHz. Since 6 kHz is within this range, it becomes the maximum modulating frequency.
To determine the bandwidth used, we use the formula BW = 2 × (Δf + fm). Substituting the given values, we get BW = 2 × (18 kHz + 6 kHz) = 48 kHz. However, we need to note that the bandwidth is double the deviation, as it includes both the upper and lower sidebands.
When the modulating index is 0.5 and the carrier signal amplitude is 10 V, we can sketch the FM signal spectra using Bessel functions. The sidebands will be located around the carrier frequency, and their amplitudes will be determined by the Bessel function coefficients. The amplitude of the carrier signal remains unchanged, while the sidebands vary in amplitude. The resulting spectrum will show a central carrier peak and multiple sideband peaks, with the amplitudes decreasing as we move away from the carrier frequency.
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Related Questions
Assume char[][][] x = new char[14][5][16], what are x.length, x[2].length, and x[0][0].length?a. 13, 5, and 16b. 13, 5, and 15c. 12, 5, and 15d. 14, 5, and 16
Answers
The right answer is D, which means that the lengths will be 14, 5, and 16. Java has syntax and principles are derived from the C and C++ languages.
What does Java mean in terms of programming?An object-oriented computer language and application platform known as Java are used by millions of electronic devices, including laptops, cellphones, video game consoles, hospital instruments, and many others. Java's syntax and fundamental principles are derived from C and C++.
What is a Java example?A language for object-oriented programming is Java. Everything in Java is built upon classes and objects, as well as their properties and methods. In the real world, an automobile is an example of an item. Along with features like drive and brake, the car also has attributes like weight and color.
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Screen reading for extended periods can cause___________ _____________, so the position the monitor to minimize glare and give your eyes a short break every half hour.
Answers
Screen reading for extended periods can cause a syndrome known as the computer vision syndrome
Computer vision SyndromeWhat is computer vision Syndrome?
the computer syndrome is characterised by eye discomfort and fatigue, dry eye, blurry vision, and headaches, glare, etc. Uncorrected vision problems are a major cause. it is recommended to stay off the computer for at least thirty minutes to minimise the effects
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a quorum is shared storage used to store cluster configuration data.True or False
Answers
False. A quorum is not shared storage used to store cluster configuration data. A quorum in a clustered computing environment refers to a mechanism used to determine the availability and majority opinion of nodes or members in the cluster.
The purpose of a quorum is to prevent split-brain scenarios, where multiple nodes in a cluster might assume control simultaneously, leading to conflicting decisions and potential data corruption.
A quorum ensures that a majority of nodes must agree on decisions and have the ability to form a coherent cluster. It is not directly related to shared storage or the storage of cluster configuration data.
On the other hand, shared storage in a clustered environment typically refers to a storage system or network storage that is accessible and shared by multiple nodes in the cluster. This shared storage is used to store data that can be accessed and modified by different nodes in the cluster, enabling high availability and data consistency.
While both quorum and shared storage are important concepts in clustering, they serve different purposes. Quorum is about determining the majority opinion and avoiding conflicts, whereas shared storage is focused on providing a common storage platform for data access and management within the cluster.
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With _____, human thinking and problem-solving is performed by a machine, including learning, reasoning, and self-correction. wearable technologies quantum computers artificial intelligence Moore's Law
Answers
Answer:
THE ANSWER IS B
Explanation:
if the contents of start date is 10/30/2023, when formatted as a date, the results of edate(start date,3) would be .
Answers
The correct option is a) 1/30/2023. This is the case if the contents of Start_Date is 10/30/2023.
What does the function EDATE(start_Date,3) do?The function EDATE(start_Date,3) is used to calculate a date that is a specified number of months after a given starting date.
This implies that the "start_Date" argument represents the initial date, and the "3" argument represents the number of months to add to the initial date.
In this example, the "start_Date" argument is October 30, 2023, and the "3" argument is used, the EDATE function will return the date of January 30, 2023, which is three months after the initial starting date.
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The complete question reads;
When formatted as a date, the results of EDATE(Start Date,3) if the contents of Start_Date is 10/30/2023 would be a) 1/30/2023 b)1/31/2023 c) 11/2/2023 d) 10/31/2021
Arrange the tasks based on the phases of website development in the order from start to finish.
1. The team uses a coded approach (HTML, CSS, and JavaScript) to create the required web pages.
2. The team creates a sitemap based on the gathered information.
3 Randolph and his team interview a client to find out the requirements for the client’s website.
4. The team creates a flowchart and wireframe based on a webbed storyboard.
5. The team checks the website against worst-case scenarios and for potential bugs.
6. Randolph delegates monthly update tasks to two team members.
7. After client approval, Randolph and his team launch the website on the client platform.
Please actually try to answer if you know and don't just answer for the answering points pls.
Answers
Based on the typical phases of website development, the correct order for the tasks would be:
1. Randolph and his team interview a client to find out the requirements for the client's website.
2. The team creates a sitemap based on the gathered information.
3. The team creates a flowchart and wireframe based on a webbed storyboard.
4. The team uses a coded approach (HTML, CSS, and JavaScript) to create the required web pages.
5. The team checks the website against worst-case scenarios and for potential bugs.
6. After client approval, Randolph and his team launch the website on the client platform.
7. Randolph delegates monthly update tasks to two team members.
Data is stored in a computer using patterns of __________ defined by standard coding schemes
Answers
Instructions
Please modify your 4.2.5 Growing Circle activity on CodeHS and then submit it here.
Your circle should start being as big as the width of the screen and should decrease in size until it disappears.
Here is the code i have in growing circle so far
/* Constants */
var START_RADIUS = 1;
var INCREMENT = 1;
var CHANGE_COLORS_AT = 10;
var circle;
function start(){
circle = new Circle(START_RADIUS);
circle.setPosition(getWidth() / 2, getHeight() / 2);
add(circle);
setTimer(drawer, 50);
}
function drawer(){
circle.setRadius(circle.getRadius() + INCREMENT);
if((circle.getRadius() % CHANGE_COLORS_AT)== 0){
circle.setColor(Randomizer.nextColor());
}
if((circle.getRadius() * 2) > getHeight()){
stopTimer(drawer);
}
}
Answers
The modification of Growing Circle activity on CodeHS is in the explanation part.
What is programming?The process of carrying out a specific computation through the design and construction of an executable computer program is known as computer programming.
Here's the modified code for the Growing Circle activity on CodeHS that starts as big as the width of the screen and decreases in size until it disappears:
/* Constants */
var START_RADIUS = getWidth() / 2;
var DECREMENT = 1;
var circle;
function start() {
circle = new Circle(START_RADIUS);
circle.setPosition(getWidth() / 2, getHeight() / 2);
add(circle);
setTimer(drawer, 50);
}
function drawer() {
circle.setRadius(circle.getRadius() - DECREMENT);
if (circle.getRadius() <= 0) {
stopTimer(drawer);
remove(circle);
}
}
Thus, this modified code will make the circle shrink from its starting size until it disappears.
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Design an experimental method of your choice. 1. Choose a research question 2. Turn it into a hypothesis 3. Identify your dependent and independent variables 4. Name your population 5. Explain how you would choose your sample 6. Describe how you would use an experimental and a control group
Answers
The designed experiment is given below:
Research question: Does drinking green tea improve memory?Hypothesis: Drinking green tea improves memory performance.Independent variable: Drinking green teaDependent variable: Memory performancePopulation: Adults aged 18-65Sample: A random sample of 100 adults aged 18-65 would be selected from the population.What is the rationale for the above response?Experimental and control groups: Participants would be randomly assigned to either the experimental group or the control group. The experimental group would drink three cups of green tea daily for 4 weeks, while the control group would drink a placebo tea with no active ingredients.
Both groups would take a memory test before and after the 4-week period. The memory test would consist of recalling a list of 20 words after 10 minutes. The mean number of words recalled by each group would be compared using a t-test to determine if there is a significant difference in memory performance between the two groups.
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Do you know how to change your grades on a printer???????????
Answers
Answer:
To change ur grade make sure to do it on the website first by right clicking your mouse and clicking inspect element and once done changing x out and it will save
Explanation:
____ can help you determine whether a network is truly under attack or a user has inadvertently installed an untested patch or custom program.
Answers
Answer:
Network forensics
Explanation:
hide the most valuable data at the innermost part of the network.
The TypeError: can't multiply sequence by non-int of type float error commonly occurs when you use the Python input() function, which takes user ...
Answers
The TypeError "can't multiply sequence by non-int of type float" commonly occurs when attempting to multiply a sequence by a non-integer value, specifically a float.
This error often happens when using the Python input() function to get user input and performing arithmetic operations with the input. The "can't multiply sequence by non-int of type float" error occurs because certain types of operations, such as multiplication, are not defined between sequences (like lists or strings) and float values. The input() function in Python returns a string representing the user's input, and if you try to multiply this string with a float value, the error is raised. To resolve this error, you can either convert the input to an appropriate data type (such as an integer or float) before performing the multiplication, or ensure that you are using the correct data types in your calculations. Additionally, it is important to validate and handle user input properly to avoid unexpected errors and ensure the input is compatible with the intended arithmetic operations.
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Python 3 • Autocomplete Ready O 1. Define a class 'Movie' that represents Name of the Movie, Number of Tickets, and the Total cost of a movie ticket printing machine. 3 4 5 Hint import math import os import random import re import sys 6 7 8 Define the initializer method, _init_ that takes three values and assigns them to the above 3 attributes, respectively. 2. Improvise the class definition of 'Movie' such that any Movie object is displayed in the following format: Sample: Movie: Kabir Singh Number of Tickets : 5 Total Cost: 666 Hint: Define the method _str_ inside the class 'Movie'. 9 10 class Movie: 11 def __init__(self, vali, val2, val3): 12 self.movieName= vali 13 self. numberTickets = val2 14 self. totalCost = val3 15 def --str--(self): 16 #return self.movieName 17 #return self.numberTickets 18 #return self. totalCost 19 return "Movie : {}\nNumber of Tickets : {}\nTotal Cost :) ".format(self.movieName, self.numberTickets, self.totalCost) 20 21 vif -_name__ = 'main': 22 name = input() 23 n = int(input().strip) 24 cost = int(input().strip) 25 26 pl = Movie(name, n, cost) 27 print (pl) Note 1. Only the above 2 steps are to be followed while writing the code. 2. Printing the output will be taken care while testing by creating an object for the class 'Movie' with sample inputs as arguments and printing the object. Input Format for Custom Testing The first line should contain the value for 'Name of the movie'. 19 return "Movie : \nNumber of Tickets : {}\nTotal Cost : {} ".format(self.movieName, self. numberTickets,self. total cost) 20 21 vif __name__ == '__main__': 22 name = input() 23 n = int(input().stripo) 24 cost = int(innut().strin The second line should contain the value for 'no. of tickets'. The third line should contain the value for 'total cost'. Sample Test Case 1 Sample Input Line: 19 Test Results Custom Input Run Submit STDIN No test case passed. Your Output (stdout) Star Wars 2 210 X Test case o Movie : Star Wars Number of Tickets : 2 X Test case 1 Total Cost : 210 Sample Output X Test case 28 Expected Output Down Movie : Star Wars Number of Tickets : 2 Total Cost : 210 Movie : Star Wars X Test case 3 Number of Tickets : 2 Total Cost : 210 X Test case 4 A
Answers
Here is the Python code for the class 'Movie' that meets the requirements specified in the prompt:
class Movie:
def __init__(self, movie_name, num_tickets, total_cost):
self.movieName = movie_name
self.numberTickets = num_tickets
self.totalCost = total_cost
def __str__(self):
return "Movie: {}\nNumber of Tickets: {}\nTotal Cost: {}".format(self.movieName, self.numberTickets, self.totalCost)
if __name__ == '__main__':
name = input("Enter the name of the movie: ")
n = int(input("Enter the number of tickets: "))
cost = int(input("Enter the total cost: "))
pl = Movie(name, n, cost)
print(pl)
In this code, the class Movie is defined with an initializer method __init__ which takes three arguments, the name of the movie, the number of tickets and the total cost of the movie. The __str__ method is defined which returns the string representation of the movie object in the format specified in the prompt.
The if __name__ == '__main__': block takes inputs for the movie name, number of tickets and total cost and creates an object of the Movie class and prints it.
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To improve accuracy during user input, a designer can add context to the ________ from the properties screen which will be displayed in the status bar to provide additional information to users who are entering data.
Answers
Answer:
Description
Explanation:
To improve accuracy during user input, a designer can add context to the Description from the properties screen which will be displayed in the status bar to provide additional information to users who are entering data.
1. Select and open an appropriate software program for searching the Internet. Write the name of the program.
Answers
An appropriate software program for searching the Internet is known as Web browser.
What is the software that lets you search?A browser is known to be any system software that gives room for a person or computer user to look for and see information on the Internet.
Note that through the use of this browser, one can easily look up information and get result immediately for any kind of project work.
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Can anyone help and write a sample answer to this please x
Answers
Answer:
I can give you some points -
Today people consider owning the latest smartphones and gadgets as a symbol of status. The demand for newer models of gadgets results in the production of more things we dont require. More and more waste is generated due to the rejection of older models of working gadgets. More demand for newer models can help in the advancment in technology and encourage manufavturers to produce better gadgets. But this increase in demand can badly affect our environments ..i hope these points can help you.
a data analyst uses a changelog while cleaning their data. what data modifications should they track in the changelog?
Answers
A change log is a comprehensive list of modifications made to data or a software application. It is used to keep track of all changes made and maintain an up-to-date record.
Dropping columns - In some cases, some columns may be deemed unnecessary for analysis and are therefore removed. Any columns dropped from the dataset should be documented in the change log.
Imputation of missing values - Missing values can be replaced with the mean, median, or mode of the variable to make the dataset more complete.These modifications should be tracked in the change log.
Data transformations - Data transformation is the process of converting data from one format to another, typically to prepare it for analysis. Any data transformations made, such as scaling or normalization, should be documented in the change log.
Filtering data - It may be necessary to remove certain observations or data points that do not meet specific criteria for analysis. Any data filtering done should be recorded in the change log.
Outlier removal - An outlier is an observation that deviates significantly from other observations in the dataset. Any removal of outliers should be documented in the change log.
In conclusion, a change log is essential in maintaining a record of modifications made to data. Column renaming, dropping columns, imputation of missing values, data transformations, filtering data, and outlier removal are some data modifications that should be tracked in the change log by a data analyst while cleaning their data.
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why was the tesla model s help change the was we see EV
Answers
Answer:
It showed people that electric cars are advancing, and soon will be the norm.
Lots of people thought that EV cars would never be able to last as long as gas powered cars. However, with technology importing, Tesla cars are getting closer and closer to being able to provide the same amount of millage as the gas powered cars.
Which unit of computer is used to processed data?
Please help!!!!!!
Answers
\(Hello\) \(There!\)
\(AnimeVines\) \(is\) \(here!\)
Is it Central Processing Unit?
\(HopeThisHelps!!\)
\(AnimeVines\)
Answer:
Central Processing Unit (CPU)
Explanation:
The Central Processing Unit (aka CPU), is used to process the data.
an array is declared as short lot[95].the address of lot is 0x3f76.what is the address of the last byte in the array lot?give your answer in 4 hexadecimal digits (include leading zeros).
Answers
The address of the last byte in the array "lot" can be represented as 0x3fde in 4 hexadecimal digits (including leading zeros).
The array "lot" is declared as "a short lot[95]", which means it is an array of 95 elements of type "short". Each element of type "short" typically occupies 2 bytes of memory.
Given that the address of "lot" is 0x3f76, we can calculate the address of the last byte in the array by considering the size of the array and the size of each element.
The array "lot" has a total of 95 elements. Since each element occupies 2 bytes of memory, the total size of the array in bytes is 95 * 2 = 190 bytes.
To find the address of the last byte in the array, we add the size of the array (190 bytes) to the base address of the array (0x3f76).
0x3f76 + 190 = 0x3fde
Therefore, the address of the last byte in the array "lot" is 0x3fde in 4 hexadecimal digits, including leading zeros.
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the page fault rate for a process increases when its working set is in memory. group of answer choicestruefalse
Answers
The given statement "the page fault rate for a process increases when its working set is in memory" is FALSE because it is the frequency at which a process generates page faults.
A page fault occurs when a process tries to access a memory location that is not currently mapped in its address space.
When the working set, which is the set of pages that a process is actively using, is in memory, the process can access the required data without generating page faults.
As a result, the page fault rate will be lower. On the other hand, if the working set is not in memory, the process will frequently generate page faults, leading to a higher page fault rate.
Proper memory management techniques aim to keep the working set of a process in memory to reduce the page fault rate and improve overall system performance.
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what is the main purpose of the circulatory system
Answers
The network of blood vessels and the heart that carries blood throughout the body. This system helps tissues get the right amount of nutrients, oxygen, and waste disposal.
The most important component of the circulatory system?The primary function of the circulatory system is to carry oxygen, nutrients, and hormones to the muscles, tissues, and organs throughout the body. Another role of the circulatory system is to remove waste from cells and organs so that your body can eliminate it.
What is the primary goal of this quiz about the circulatory system?The circulatory system's job is to provide nutrients and oxygen to body cells while returning carbon dioxide and oxygen-poor blood to the heart and lungs.
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What do HIPAA guidelines protect?
Answers
Answer:
They protect patient medical records im pretty sure
Explanation:
Which of the following demonstrates an information system? Tyra is using the computer to create a birthday card for her friend. Ahmad is installing new software to improve the ease of accessing the database. Shania is creating a printed handbook of company policies for new employees. Ian is making updates to the company website to include the latest product information
Answers
Answer:
B. Ahmad is installing new software to improve the ease of accessing the database.
C. Shania is creating a printed handbook of company policies for new employees.
D. Ian is making updates to the company website to include the latest product information
Explanation:
Information Systems is an organized way of assembling, processing, storing, and sharing information. It is used by organizations to run their businesses. A typical information system will feature the people who run or control the process, the tasks they are meant to perform, the procedures which govern the work done, and the technology used to achieve those goals. Information systems incorporate information technology into the running of the business. The examples cited above, illustrate the application of information systems in business affairs. For example,
1. When Ahmad installs new software to improve the ease of accessing the database, the main components of an information system which includes; people (Ahmad), the task (which entails installation of the software), the procedures (that govern software installation), and the technology (apparently a computer system), all have a role to play.
Which of these is a compound morphology?
A.
bookkeeper = book + keeper
B.
happiness = happy + ness
C.
books = book + s
D.
banker = bank + er
Answers
Answer:
D.
Explanation:
yarn po answer ko po eh
because bank +er =banker
which method or methods are in both the string and stringbuilder classes? select all that apply. length touppercase parsedouble indexof charat
Answers
The correct answer is: length, indexOf, and charAt. The methods that are in both the string and StringBuilder classes are length, indexOf, and charAt.
The methods that are in both the string and StringBuilder classes are length, indexOf, and charAt. The length() method returns the length of the string or StringBuilder, the indexOf() method returns the index of a specific character or substring within the string or StringBuilder, and the charAt() method returns the character at a specific index within the string or StringBuilder.The toUpperCase() method is only available in the String class, and it returns the string in all uppercase characters. The parseDouble() method is only available in the Double class, and it converts a string into a double value.
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2. Identify two real-world examples of problems whose solutions do not scale well.
Answers
Answer:
The specification is defined downwards according to the conclusions reached.
Explanation:
Real-world instances or examples of issues that do not scale well are listed following table:
For different uses, such as solving the equation, respectively., multiplication matrices. It still does not scales or works well to organize a wide sequence of names or numbers as the requisite measures raise as squares by around the enlargement or increment.if you have an old drive that spins up but wont seek, it is probably a mechanical failure. that last ditch effort before giving up or sending it out for data recovery is tapping lightly with a screwdriver on the cover of the drive, away from the circular section where the disks are spinning. this might encourage a stuck head to get moving. just make sure you have your backup media prepared if you try this because it may work just the one time.
Answers
Answer:
It is true that if a hard drive spins up but does not seek, it may be a mechanical failure. Tapping lightly with a screwdriver on the cover of the drive, away from the circular section where the disks are spinning, may sometimes help to free a stuck head and get it moving again. However, this is a last-ditch effort and there is no guarantee that it will work. It is important to note that attempting to fix a failed hard drive in this way could cause further damage to the drive and potentially make data recovery more difficult or even impossible. Before attempting any DIY fixes, it is always recommended to consult with a professional data recovery service to minimize the risk of data loss. Additionally, having a backup of your important data is essential to ensure that you don't lose any critical information if the drive cannot be repaired.
Explanation:
How big of a role does social media play in the mental health of people? Does it do more harm or good? Explain why. in 400 words
Answers
The role that social media play in the mental health of people is big. The use of social media is one that is known to have c positive effects for example connecting people, giving a platform for self-expression, and others.
What is the role that social media?The key bad impacts of social media on mental health is one that is known to have the potential for addiction. Social media platforms are said to be set up to be a form of engaging, which can result to individuals spending excessive amounts of time going through their feeds and this may lead to depression.
Hence the negative impact of social media on mental health is the one that can also lead to cyberbullying that is Online harassment.
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During a slide show, Luis wants a picture to appear on one of his slides after the slide appears on the screen. Which type of animation should he use
Answers
The type of animation that Luis can use in during the slide show after his slide appears is: entrance animation.
What is an Entrance Animation?An entrance animation is an effect that controls how an object appears on a slide, starting at the start point of the object.
For example, using the entrance animation, Luis can make the object move slowly into the slide using a float-in effect.
Thus, the type of animation that Luis can use in during the slide show after his slide appears is: entrance animation.
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