A mobile base station in an urban environment has a power measurement of 25 µW at 225 m. If the propagation follows an inverse 4th-power law, assuming a distance of 0.9 km from the base station, what would be a reasonable power value, in µW?

Give your answer in scientific notation to 2 decimal places

Answers

Answer 1

Answer:

The answer is below

Explanation:

The inverse fourth power law states that the intensity varies inversely to the fourth power of the distance from the source. That is as the distance increases, the intensity decreases.

Let I represent the intensity and let d represent the distance from the source, hence:

I ∝ 1 / d⁴

I = k / d⁴

Where k is the constant of proportionality.

Given that at a power of 25W = 25*10⁻⁶ W, the distance (d) = 225 m. We can find the value of k.

25*10⁻⁶  = k / 225⁴

k = 225⁴ * 25*10⁻⁶ = 64072.27

Hence:

I = 64072.27 / d⁴

At a distance (d) = 0.9km = 900 m, we can find the corresponding power:

I = 64072.27 / 900⁴

I = 9.77 * 10⁻⁸ W


Related Questions

Type the correct answer in the box. Spell all words correctly.
John wants to use graphical elements on his web page. Which image formats should he use to keep the file size manageable?
John should use
formats to keep the file size manageable.

Answers

Answer:

JPEG or PNG but mostly JPEG

Explanation:

JPEG – JPEG is the best option for photographs and other images displaying a huge variety of colors. They can also be compressed, sacrificing quality for a reduction in file size.

PNG – PNGs win for graphics, drawings, text, and some screenshots. They also support transparency, unlike JPEGs. This format uses lossless compression, which results in higher quality but also bigger files.

The image formats should he use to keep the file size manageable is JPEG or PNG however commonly JPEG.

What is JPEG format?

JPEG is the high-satisfactory choice for pics and different pix showing a massive sort of colors. They also can be compressed, sacrificing high-satisfactory for a discount in report size.

PNG PNGs win for graphics, drawings, text, and a few screenshots. They additionally help transparency, not like JPEGs. This layout makes use of lossless compression, which leads to better high-satisfactory but additionally larger files.

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Given the waveform below, derive the output waveform (Q) for the respective devices. All outputs start at RESET (Q = 0) state


a) S-R latch assuming A = S and B = R.
b) Gated D latch assuming C = EN and B = D.
c) Negative Edge-triggered D Flip-flop assuming C = CLK and A = D.
d) Positive Edge-triggered J-K Flip-flop assuming C = CLK, A = J, and B = K.

Answers

The answer is b but I’m not sure

Every home or organization with Internet access has an ISP.
Question 29 options:
True
False

Answers

true ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎ ‎

help me in computer

no spam i will report wrong answer​

Answers

In the computar process it has to be done in a blind fold

Now, it’s time for you to begin coding your text-based adventure game!Starting at the top, convert each line of your pseudocode from your Coding Log into a line of Python code.Make sure to use the correct syntax and indentation. If you decide to challenge yourself and use functions, be sure to include the correct function calls.Your code should include at least two loops—one while loop and one for loop.Run and test your code in parts as you go. Follow the iterative process of coding and revising. It may be helpful to apply this process to each part of your game (Intro, Part 1, Part 2, and Part 3).Make the following improvements to your game:If the user types in a slightly different word than you expect, you don’t want your game to crash! Use lists to gain a better understanding of the input that users give. Refer back to Unit 1 for more information on lists. Here is an example:if choice in [“set a trap”, “set trap”, “trap”, “make a trap”, “make trap”]Your list won’t work if the user capitalizes any letter because the Interpreter won’t recognize a match between the same lowercase and uppercase letter. To convert the user input to all lowercase, use the lower function:if choice.lower() in [“set a trap”, “set trap”, “trap”, “make a trap”, “make trap”]Go through and make sure all of your inputs are converted to lowercase.Share the link to your Python code with your teacher in REPL.it by clicking on the share button and copying the link. Also, submit your pseudocode.

Answers

Answer:

When I finish I will send answer.

Explanation:

The coding exercise tests the ability to code using Python. It is important to note that all the indentation rules must be observed while running this code to prevent Indentation Error.



What is the code for the above exercise?

The code for the above exercise is given as follows:


def start():

# give some prompts.

 print("\nYou are standing in a dark room.")

print("There is a door to your left and right, which one do you take? (l or r)")

# convert the player's input() to lower_case

answer = input(">").lower()

if "l" in answer:

# if player typed "left" or "l" lead him to bear_room()

 bear_room()

elif "r" in answer:

# else if player typed "right" or "r" lead him to monster_room()

 monster_room()

else:

# else call game_over() function with the "reason" argument

 game_over("Don't you know how to type something properly?")

# start the game

start()


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Write a program whose input is a character and a string, and whose output indicates the number of times the character appears in the string. The output should include the input character and use the plural form, n's, if the number of times the characters appears is not exactly 1.You may assume that the string does not contain spaces and will always contain less than 50 characters.

Ex: If the input is:

n Monday
the output is:

1 n
Ex: If the input is:

z TodayisMonday
the output is:

0 z's
Ex: If the input is:

n It'ssunnytoday
the output is:

2 n's
Case matters.

Ex: If the input is:

n Nobody
the output is:

0 n's
n is different than N.
C programming.

Answers

Answer:

The program and input is different than n, and it’s sunny today.

What would a bar graph best be used for? State why and give 2-3 examples of things you could demonstrate with a bar graph

Answers

Answer:

A bar graph is used to compare facts.

For example:

A group of people's favorite movie.

A group of people's favorite fruit.

Consider the following method, inCommon, which takes two Integer ArrayList parameters. The method returns true if the same integer value appears in both lists at least one time, and false otherwise.

public static boolean inCommon(ArrayList a, ArrayList b)
{
for (int i = 0; i < a.size(); i++)
{
for (int j = 0; j < b.size(); j++) // Line 5
{
if (a.get(i).equals(b.get(j)))
{
return true;
}
}
}
return false;
}

Which of the following best explains the impact to the inCommon method when line 5 is replaced by for (int j = b.size() - 1; j > 0; j--) ?

a. The change has no impact on the behavior of the method.
b. After the change, the method will never check the first element in list b.
c. After the change, the method will never check the last element in list b.
d. After the change, the method will never check the first and the last elements in list b.
e. The change will cause the method to throw an IndexOutOfBounds exception.

Answers

Answer:

b. After the change, the method will never check the first element in list b.

Explanation:

After changing the code on line 5 with the one in the question the method will never check the first element in list b. This is because by changing the code you are telling the method to run for every element in list b starting from the last element and moving backward. Since the second argument is j > 0, once j is equal to 0 it will not run the method since it would give a False on the argument and therefore, will never run the method for the element in position 0 (first element in the list)

.............................................is the vertical distance between successive lines of the text​

Answers

Answer:

Line spacing is the vertical distance between successive lines of the text​.

Explanation:

Hope this helps you. :)

Complete the sentence. Use a ___ ___ (2 words) to find a website's URL based on keywords you specify.​

Answers

Answer: Search engine

Explanation:

If you need to find out the URL of a website that can help you with a particular service needed, you can use a search engine such as G-oogle or Duck-duckgo to find the relevant websites. You type in keyword/s and the search engine will look for websites associated with the word/s.

The links to be websites will be displayed and clicking on them will take you to the website.

Why is sequencing important?

A. It allows the programmer to test the code.
B. It allows the user to understand the code.
C. It ensures the program works correctly.
D. It makes sure the code is easy to understand.

Answers

Answer:

c i think but if not go with d

Answer:

C

Explanation:

It ensures the program works correctly

hope it helps!

Help ASAP please This is a skills lab simulation for college, it’s on Microsoft word is there a keyboard shortcut or something on Ribbon tab to remove widow/orphan control option

Answers

Answer:

down right corner

Explanation:

next to the time

10. Select the correct answer.
Thomas has signed a deal with a production house that allows them to use his images on their website. What is required that permits the usage of images for commercial or editorial purposes?
A.
copyright
B.
licensing
C.
permit
D.
public domain
E.
fair use

Answers

b) licensing because they are giving Thomas permission to use the images
B is the correct answer .!!!!!

You want to make access to files easier for your users. Currently, files are stored on several NTFS volumes such as the C:, D:, and E: drives. You want users to be able to access all files by specifying only the C: drive so they don't have to remember which drive letter to use. For example, if the accounting files are stored on the D: drive, users should be able to access them using C:\accounting. What can you do?

Answers

Answer:

volume mount points

Explanation:

The best thing to do would be to use volume mount points. This is a feature that allows you to mount/target (from a single partition) another folder or storage disk that is connected to the system. This will easily allow the user in this scenario to access the different files located in the D: and E: drive from the C:\ drive itself. Without having to go and find each file in their own separate physical drive on the computer.

3. What workplace hazards can be found on picture A?

4-5. Describe the workplace A and B, What are their differences​

Answers

Answer:

Hakdog

Explanation:

kase hakdog ka kainin mo tite ko

Where or what website can I download anime's? For free ​

Answers

https://todo-anime.com/

Write a function longer_string() with two string input parameters that returns the string that has more characters in it. If the strings are the same size, return the string that occurs later according to the dictionary order. Use the function in a program that takes two string inputs, and outputs the string that is longer.

Answers

Answer:

Here you go :)

Explanation:

Change this to your liking:

def longer_string(s1, s2):

   if len(s1) > len(s2):

       return s1

   elif len(s1) < len(s2):

       return s2

   else:

       return s2

x = input("Enter string 1: ")

y = input("Enter string 2: ")

print(longer_string(x, y))

Mad Libs are activities that have a person provide various words, which are then used to complete a short story in unexpected (and hopefully funny) ways.
Write a program that takes a string and integer as input, and outputs a sentence using those items as below. The program repeats until the input string is quit.
Ex: If the input is:
apples 5
shoes 2
quito 0
the output is
Eating 5 apples a day keeps the doctor away.
Eating 2 shoes a day keeps the doctor away.
Note: This is a lab from a previous chapter that now requires the use of a loop. LB 334 1 LAB Mad Lib-loops main.cpp Load default template.
1 #include
2 #include
3 using namespace std;
4
5 int main()
6
7 {
8 return;
9
10

Answers

Answer:

Following are the code to this question:

#include <iostream>//header file

#include <string>//header file

using namespace std;

int main() //main method

{

   string item;//defining a string variable

   int n;//defining integer variable

   while(cin >>n >>item)//defining while loop to input value  

   {

       if(item == "quito" && n == 0)//use if block to check input value  

       {

           break;//use break keyword

       }

       cout << "Eating " << n << " " << item << " a day keeps the doctor away." << endl;//print input value with the message

   }

   return 0;

}

Output:

Please find the attached file.

Explanation:

In this code, inside the main method one string variable and one integer variable "item, n" is defined, that uses the while loop for input the value and uses the if block that checks string value is equal to "quito" and n value is equal to "0" it breaks the loop, and print the value with the message.

Is a NAS just a collection of hard drives or a computer

Answers

Answer:

NAS systems are networked appliances that contain one or more storage drives, often arranged into logical, redundant storage containers or RAID.

How can we display outputs of DIR one screenful at a time? There are at least two different ways, and either one is acceptable.

Answers

Answer:

DIR has a /p option to paginate any output.

dir /p

Will give you one screen length at a time.

I believe you can use that simultaneously with /w if you want to fit more file names on the screen, at the loss of additional data like file size, type, etc.

Type the correct answer in the box. Spell all words correctly.
Graphic designers can compress files in different formats. One of the formats ensures that the quality and details of the image are not lost when the graphic designer saves the file. Which file format is this?
The _______file format ensures that images don’t lose their quality and details when graphic designers save them.

Answers

Answer: TIFF

Explanation:

Tag Image File Format (TIFF) is the go to file format when one needs to store their image without worrying about it losing its quality and details. This is why TIFF images do not become smaller when compressed because they aim to save the quality of the work.

One has access to options such as tags and transparency on TIFF and it can be used on Photoshop as well as for things like desktop publishing and faxing.

Answer:

The lossless file format ensures that images don’t lose their quality and details when photographers save them.

Explanation:

Security attacks are classified as either passive or aggressive. True or false

Answers

Answer:

false is the answer okkkkkkkkkkkkkkkk

Drivers are concerned with the mileage obtained by their automobiles. One driver has kept track of several tankfuls of gasoline by recording miles driven and gallons used for each tankful. Develop a sentinel-controlled-repetition script that prompts the user to input the miles driven and gallons used for each tankful. The script should calculate and display the miles per gallon obtained for each tankful. After processing all input information, the script should calculate and display the combined miles per gallon obtained for all tankfuls (that is, total miles driven divided by total gallons used).
Enter the gallons used (-1 to end): 128
Enter the miles driven: 287 The miles/gallon for this tank was 22.421875
Enter the gallons used (-1 to end): 10.3
Enter the miles driven: 200 The miles/gallon for this tank was 19.417475
Enter the gallons used (-1 to end): 5
Enter the miles driven: 120 The miles/gallon for this tank was 24.000000
Enter the gallons used (-1 to end): -1 The overall average miles/gallon was 21. 601423

Answers

Answer:

In Python:

gals= float(input("Enter the gallons used (-1 to end): "))

miles = float(input("Enter the miles driven: "))

mileage = 0.0

count = 0

while not (gals == -1):

   count += 1

   mileage +=(miles/gals)

   print("The miles/gallon for this tank was "+str(round(miles/gals,6)))

   gals= float(input("Enter the gallons used (-1 to end): "))

   miles = float(input("Enter the miles driven: "))

print("The overall average miles/gallon was "+str(round(mileage/count,6)))

Explanation:

#This prompts the user for the number of gallons used

gals= float(input("Enter the gallons used (-1 to end): "))

#This prompts the user for miles driven

miles = float(input("Miles driven: "))

#This initializes the mileage to 0

mileage = 0.0

#This initializes the count of vehicles to 0

count = 0

#The following is repeated until input for gallons is -1

while not (gals == -1):

#The count of vehicles is increased by 1

   count += 1

#The total mileage for all cars is calculated

   mileage +=(miles/gals)

#This prints the mileage for that particular vehicle

   print("The miles/gallon for this tank was "+str(round(miles/gals,6)))

#This prompts the user for the number of gallons used

   gals= float(input("Enter the gallons used (-1 to end): "))

#This prompts the user for miles driven

   miles = float(input("Miles driven: "))

#This calculates and prints the overall average mileage  

print("The overall average miles/gallon was "+str(round(mileage/count,6)))

Suppose that an intermixed sequence of push and pop operations are performed on a LIFO stack. The pushes push the numbers 0 through 9 in order; the pops print out the return value. For example"push(0); pop(); push(1)" and "push(0); push(1); pop()" are possible, but "push(1); push(0); pop()" is not possible, because 1 and 0 are out of order. Which of the following output sequence(s) could occur? Select all that are possible.
a) 12543 609 8 7 0
b) 01564 37928
c) 6543210789
d) 02416 75983
e) 46 8 75 32 901

Answers

Answer:

b) 01564 37928

e) 26 8 75 32 901

Explanation:

Pushes and pulls are the computer operations which enable the user to perform numerical tasks. The input commands are interpreted by the computer software and these tasks are converted into numeric values to generate output.

Retype each statement to follow the good practice of a single space around operators.

a. tot = num1+num2+2;
b. numBalls=numBalls+1;
c. numEntries = (userVal+1)*2;

Answers

Answer:

a. tot = num1 + num2 + 2;

b. numBalls = numBalls + 1;

c. numEntries = (userVal + 1) * 2;

Explanation:

Given

(a), (b) and (c)

Require:

Rewrite

There isn't much to do or explain; All you need to do is include single space between the operands and opcodes

So:

tot = num1+num2+2;   becomes tot = num1 + num2 + 2;

numBalls=numBalls+1; becomes numBalls = numBalls + 1;

numEntries = (userVal+1)*2; becomes  numEntries = (userVal + 1) * 2;

The difference in both statements is the inclusion of single line spacing.

Define the meaning of software quality and detail the factors which affects the quality not productivity of a software product?

Answers

Answer:

Quality of software may be defined as the need of function and Efficiency. ... A number of factors are given below which gives the effects on quality and production capacity.

Software quality is known to be the method that tells the desirable characteristics of software products.

What are the Software Quality Factors that affects it?

The factors that influence software are;

CorrectnessReliabilityEfficiencyUsability, etc.

Therefore, Software quality is known to be the method that tells the desirable characteristics of software products.

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Who manages the team’s work during a sprint?
a) Scrum master manages the people so they can complete the work
b) The team manages the work by self organization
c) Product owner manages the work
d) Delivery manger manages the work

Answers

Answer:

d) delivery manger manages the work

Explanation:

sana po makatulong ako daghay salamat sayo emo

It's important to understand that even information systems that do not use computers
have a software resource component. State the two (2) types of software resources
with an example for each type to support your answers.

Answers

Answer:

yes I am not sure if you have any questions or concerns please visit the plug-in settings to determine how attachments are handled the situation in the measurements of the season my dear friend I am not sure if you can send you a great day to day basis of

Declare and implement a function called gameOver.gameOver receives a single 3x3 char[] [] array as a parameter, representing a tic-tac-toe board, with each cell containing either a X, a 0, or a (blank space). gameOver should return x if x has won the game, o ifo has won the game, and a blank space (' ') otherwise. Do not check the diagonals!

Answers

Answer:

The function in C++ is as follows:

char gameOver(char arr[][3]){

   char winner = ' ';

   if((arr[0][0] == 'X' && arr[0][1] == 'X' && arr[0][2] == 'X') ||(arr[1][0] == 'X' && arr[1][1] == 'X' && arr[1][2] == 'X') || (arr[2][0] == 'X' && arr[2][1] == 'X' && arr[2][2] == 'X')||(arr[0][0] == 'X' && arr[1][0] == 'X' && arr[2][0] == 'X') ||(arr[0][1] == 'X' && arr[1][1] == 'X' && arr[2][1] == 'X') || (arr[0][2] == 'X' && arr[1][2] == 'X' && arr[2][2] == 'X')){

       winner = 'X';

   }

   else if((arr[0][0] == 'O' && arr[0][1] == 'O' && arr[0][2] == 'O') ||(arr[1][0] == 'O' && arr[1][1] == 'O' && arr[1][2] == 'O') || (arr[2][0] == 'O' && arr[2][1] == 'O' && arr[2][2] == 'O')||(arr[0][0] == 'O' && arr[1][0] == 'O' && arr[2][0] == 'O') ||(arr[0][1] == 'O' && arr[1][1] == 'O' && arr[2][1] == 'O') || (arr[0][2] == 'O' && arr[1][2] == 'O' && arr[2][2] == 'O')){

       winner = 'O';

   }

   return winner;

}

Explanation:

The function checks for the winning character by checking for matching rows and matching columns.

When either X or O fall in the any of the following 6 conditions , then that character (X or O) wins.

The position are:

Rows: (1) 00, 01 and 02 (2) 10, 11 and 12 (3) 20, 21 and 22

Columns: (4) 00, 10 and 20 (5) 01, 11 and 21 (6) 02, 12 and 22

So, the explanation is:

This defines the function gameOver

char gameOver(char arr[][3]){

This initializes winner to blank space

   char winner = ' ';

If any of the condition stated above matches X, then X wins

   if((arr[0][0] == 'X' && arr[0][1] == 'X' && arr[0][2] == 'X') ||(arr[1][0] == 'X' && arr[1][1] == 'X' && arr[1][2] == 'X') || (arr[2][0] == 'X' && arr[2][1] == 'X' && arr[2][2] == 'X')||(arr[0][0] == 'X' && arr[1][0] == 'X' && arr[2][0] == 'X') ||(arr[0][1] == 'X' && arr[1][1] == 'X' && arr[2][1] == 'X') || (arr[0][2] == 'X' && arr[1][2] == 'X' && arr[2][2] == 'X')){

       winner = 'X';

   }

If otherwise that it matches O, then O wins

   else if((arr[0][0] == 'O' && arr[0][1] == 'O' && arr[0][2] == 'O') ||(arr[1][0] == 'O' && arr[1][1] == 'O' && arr[1][2] == 'O') || (arr[2][0] == 'O' && arr[2][1] == 'O' && arr[2][2] == 'O')||(arr[0][0] == 'O' && arr[1][0] == 'O' && arr[2][0] == 'O') ||(arr[0][1] == 'O' && arr[1][1] == 'O' && arr[2][1] == 'O') || (arr[0][2] == 'O' && arr[1][2] == 'O' && arr[2][2] == 'O')){

       winner = 'O';

   }

This returns the winner (either O, X or blank)

   return winner;

See attachment for complete program which includes the main

Write an algorithm to show whether a given number is even or odd.

Answers

Answer:

int num = Console.ReadInt("Please enter a number");

if(num%2 == 0) {

Console.WriteLine("Number is even");

} else {

Console.WriteLine("Number is odd");

Explanation:

Other Questions
will give brainliest to right answera line is translated. Which of these could be the results A farmer wants to buy a 10 kg bag of fertilizer (organic soil). They have the choice between two merchants. Merchant A sells the 10 kg bag for $10 and the bag indicates that the fertilizer is completely dry. Merchant B sells the 10 kg bag for 8$, and the bag indicates that the fertilizer has a water content of 20%. If the farmer can only use the solid constituents of the bag, which merchant has the better deal? 9/10 + 3/4 in simplest form? It is hard to imagine human beings without dance. An activity transcending all time and cultures. Someone please please help with this! I will mark brainliest if correct!! Question: One of the properties we associate with diamonds is their luster. How would you define thisterm?Plz help?! What is the most important thing historically about Plessy vs. Ferguson?It did away with Jim Crow laws.It was the first law suit heard by the court on race issues.It made Jim Crow Laws legal.O Plessy was more white than black but was still arrested.PLEASE HURRY Cassie Goes to Buffalo Wild Wings with her 2 sister. It is her turn to pay for dinner. Because she is more generous than her sister, she decides to give a 25% tip to their sever. If in total she paid $70.15, what was the price of the food and drinks only? This question has two parts. First, answer Part A. Then, answer Part B.Part ALayla is selling pizzas to raise money for a school choir trip. She earns a profit of $6 for each pizza she sells. Let t represent the total profit earned for selling p pizzas.On a separate piece of paper, write an explanation of how to graph the relationship. Then graph the relationship. Scan and upload your answer. A pack of snack bars includes 2 blueberry bars , 3 chocolate bars , and 5 cherry bars . What is the ratio of the number of blueberry bars to the number of cherry bars ? HELP ASAPDivine Command Theory argues that God is the best explanation available for how the objective moral law came to exist.TRUE FALSE Assignment 1You have decided to take up a new hobby. Write an email to yourfriend asking for his/her advice about which hobby you shouldchoose.In your email you must write:why you want to start a new hobby which two hobbies have you considered questions to ask for your friend's opinionYou must write between 75 to 100 words. please help me you have wright the literal meaning of the poem "the railway train" Abcde~Fghij. Find the value of w Read this excerpt from "It's My Constitutional Right!," a chapter in a biography of Claudette Colvin.Court Square is also within sight of the Dexter Avenue Baptist Church, pastored by Dr. Martin Luther King, Jr., from 1954 to 1960. And Court Square, as the major transfer point for City Lines buses, figured centrally in the Montgomery bus protests.Why is this information important to include in the biography?because it describes Claudette's family lifebecause it describes Claudette's feelingsbecause it describes an event in Claudette's lifebecause it describes Claudette's environment for the nation, Educating a girl child isand energy. *2FotoEscribe el antecesor de 50 100 Which location was the first permanent English settlement in the New World?aBoston, MAbJamestown, VAcPhiladelphia, PAdNew York City, NY Which of the following is NOT a symptom of diabetes?A Frequent urinationB Excessive sweatingC Extreme fatigueD Feeling thirsty The height of bamboo is proportional to its age. Use the graph to determine how long it takes for bamboo to reach a height of 120 inches,