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Marina86 [1]
3 years ago
14

Breaking a stink-bomb in a classroom demonstrates ____________ as the students at the front of the class will be the first to sm

ell the produced odors although eventually all students throughout the class will smell the gas equally.
Computers and Technology
2 answers:
melamori03 [73]3 years ago
5 0

Answer:

Breaking a stink-bomb in a classroom demonstrates <u>diffusion</u> as the students at the front of the class will be the first to smell the produced odors although eventually all students throughout the class will smell the gas equally.

Explanation:

Diffusion is defined as the property of the atoms and molecules that they move from the region of high concentration to the lower concentration. Such phenomenon can be observed in liquid and gasses. For example the smell of perfume spread around the room due to the diffusion of it's molecules. Similarly the breaking of stink bomb spread the gas molecules all over the class room.

Bess [88]3 years ago
3 0

Answer:

The correct word for the blank space is: diffusion.

Explanation:

In <em>Biology </em>and <em>Chemistry</em>, diffusion refers to the spread of particles from areas of higher concentration to areas of lower concentration. Eventually, the space where the particles were spread will be fully concentrated with it. Diffusion allows gas exchange in the atmosphere.

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LAB: Count characters - methods
tangare [24]

Answer:

i hope understand you

mark me brainlist

Explanation:

using namespace std;

#include <iostream>

 

#include <string.h>

#include <stdlib.h>

#include <stdio.h>

 

#define BLANK_CHAR (' ')

 

 

int CountCharacters(char userChar, char * userString)

{

 

int countReturn=0;

 

int n = strlen(userString);

 

for (int iLoop=0; iLoop<n; iLoop++)

{

       if (userString[iLoop]==userChar)

       {

        countReturn++;

 }

}

return(countReturn);

}

 

/******************************************

    Removes white spaces from passed string; returns pointer

     to the string that is stripped of the whitespace chars;

   

  Returns NULL pointer is empty string is passed;  

     Side Effects:

 CALLER MUST FREE THE OUTPUT BUFFER that is returned

 

 **********************************************************/

char * RemoveSpaces(char * userString)

{

 

 char * outbuff = NULL;

 

 if (userString!=NULL)

 {

   int n = strlen(userString);

    outbuff = (char *) malloc(n);

 

   if (outbuff != NULL)

   {

          memset(outbuff,0,n);

          int iIndex=0;

          //copies non-blank chars to outbuff

         for (int iLoop=0; iLoop<n; iLoop++)

         {

           if (userString[iLoop]!=BLANK_CHAR)

          {

           outbuff[iIndex]=userString[iLoop];

           iIndex++;

   }

   

   } //for

         

   }

   

   }

 return(outbuff);

 

}

 

 

int main()

{

 

 char inbuff[255];

 cout << " PLEASE INPUT THE STRING OF WHICH YOU WOULD LIKE TO STRIP WHITESPACE CHARS :>";

 gets(inbuff);

 

 char * outbuff = RemoveSpaces(inbuff);

 if (outbuff !=NULL)

 {

    cout << ">" << outbuff << "<" << endl;

    free(outbuff);

    }

     

   memset(inbuff,0,255);  

   cout << " PLEASE INPUT THE STRING IN WHICH YOU WOULD LIKE TO SEARCH CHAR :>";

gets(inbuff);

 

  char chChar;

 cout << "PLEASE INPUT THE CHARCTER YOU SEEK :>";

 cin >> chChar;

 

 int iCount = CountCharacters(chChar,inbuff);

 cout << " char " << chChar << " appears " << iCount << " time(s) in >" << inbuff << "<" << endl;

 

}

4 0
3 years ago
What is a milestone? Provide a few examples of milestones.
sineoko [7]

Answer:

A milestone is a significant progress point within your project. Milestones' main purpose is to set goals you have to achieve in order to succeed and complete your project

Explanation:

-Example 1-

You have to write a report for your project. This report contains introduction, problem background, results, and recommendations. The milestones for writing your report could be:

Milestone 1: introduction section is completed

Milestone 2: problem background section is completed

Milestone 3: results section is completed

Milestone 4: recommendations section is completed

-Example 2-

You have to design a webpage that allows the user to login, enters his/her name, and logout. The milestones in this case could be:

Milestone 1: login functionality is completed

Milestone 2: text field for typing the name is placed

Milestone 3: submit name button functionality is completed

Milestone 4: logout button functionality is completed

Milestone 5: all components of the webpage are fully integrated

You might think the goals in these examples can be set differently, and that is true. The definition of the milestones is in general subjective and it depends on how you design the steps you want to follow to complete your project. You might also want to add these milestones to a timeline so you have an estimated schedule of the development of your project.

4 0
3 years ago
Write a sentence about a mineral you use and how you use it
gregori [183]
You use ice to cool down your drinks, and ice is a mineral?
6 0
4 years ago
What is a peripheral device?
saul85 [17]

Answer:

a peripheral device is a device used to put information into as well as get information out of a computer

Explanation:

4 0
3 years ago
A noisy signal has been uploaded to D2L in the files fft_signal.mat and fft_signal.txt.Write a program to estimate the power spe
77julia77 [94]

Answer:

Answer: Program to estimate the power spectral density of the signal

Explanation:

fs= 4000; % Hz sample rate Ts= 1/fs; f0= 500; % Hz sine frequency A= sqrt(2); % V sine amplitude for P= 1 W into 1 ohm. N= 1024; % number of time samples n= 0:N-1; % time index x= A*sin(2*pi*f0*n*Ts) + .1*randn(1,N); % 1 W sinewave + noise

Spectrum in dBW/Hz

nfft= N; window= rectwin(nfft); [pxx,f]= pwelch(x,window,0,nfft,fs); % W/Hz power spectral density PdB_Hz= 10*log10(pxx); % dBW/Hz

Spectrum in dBW/bin

nfft= N; window= rectwin(nfft); [pxx,f]= pwelch(x,window,0,nfft,fs); % W/Hz power spectral density PdB_bin= 10*log10(pxx*fs/nfft); % dBW/bin

7 0
3 years ago
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