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Nataly [62]
3 years ago
8

Consider an area-source box model for air pollution above a peninsula of land. The length of the box is 15 km, its width is 80 k

m, and a radiation inversion restricts mixing to 15 m. Wind is blowing clean air into the long dimension of the box at 0.5 m/s. On average, there are 250,000 vehicles on the road, each being driven 40 km in 2 hours and each emitting 4 g/km of CO.
Required:
a. Estimate the steady-state concentration of CO in the air. Should the city be designated as "nonattainment" (i.e., steady-state concentration is over the NAAQS standard)?
b. Find the average rate of CO emissions during this two-hour period.
c. If the windspeed is zero, use the formula to derive relationship between CO and time and use it to find the CO over the peninsula at 6pm
Engineering
1 answer:
In-s [12.5K]3 years ago
3 0

Consider an area-source box model for air pollution above a peninsula of land. The length of the box is 15 km, its width is 80 km, and a radiation inversion restricts mixing to 15 m. Wind is blowing clean air into the long dimension of the box at 0.5 m/s. On average, there are 250,000 vehicles on the road, each being driven 40 km in 2 hours and each emitting 4 g/km of CO.

Required:

a. Estimate the steady-state concentration of CO in the air. Should the city be designated as "nonattainment" (i.e., steady-state concentration is over the NAAQS standard)?

b. Find the average rate of CO emissions during this two-hour period.

c. If the windspeed is zero, use the formula to derive relationship between CO and time and use it to find the CO over the peninsula at 6pmConsider an area-source box model for air pollution above a peninsula of land. The length of the box is 15 km, its width is 80 km, and a radiation inversion restricts mixing to 15 m. Wind is blowing clean air into the long dimension of the box at 0.5 m/s. On average, there are 250,000 vehicles on the road, each being driven 40 km in 2 hours and each emitting 4 g/km of CO.

Required:

a. Estimate the steady-state concentration of CO in the air. Should the city be designated as "nonattainment" (i.e., steady-state concentration is over the NAAQS standard)?

b. Find the average rate of CO emissions during this two-hour period.

c. If the windspeed is zero, use the formula to derive relationship between CO and time and use it to find the CO over the peninsula at 6pmConsider an area-source box model for air pollution above a peninsula of land. The length of the box is 15 km, its width is 80 km, and a radiation inversion restricts mixing to 15 m. Wind is blowing clean air into the long dimension of the box at 0.5 m/s. On average, there are 250,000 vehicles on the road, each being driven 40 km in 2 hours and each emitting 4 g/km of CO.

Required:

a. Estimate the steady-state concentration of CO in the air. Should the city be designated as "nonattainment" (i.e., steady-state concentration is over the NAAQS standard)?

b. Find the average rate of CO emissions during this two-hour period.

c. If the windspeed is zero, use the formula to derive relationship between CO and time and use it to find the CO over the peninsula at 6pm

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import java.io.BufferedReader;

import java.io.File;

import java.io.FileReader;

import java.io.IOException;

import java.util.Scanner;

import java.util.StringTokenizer;

public class Tester {

public static void main(String[] args) throws IOException {

Scanner in=new Scanner(System.in);

   System.out.println("Enter a Number =======>");

   long N ;

   while (!in.hasNextLong()) {

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       in.next();

   }

   N=in.nextLong();

   System.out.println("Number Entered is =======>"+N);

   System.out.println("Enter a Digit =======>");

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   while (!in.hasNextLong()) {

       System.out.println("That's not a number!");

       in.next();

   }

   D=in.nextInt();

   System.out.println("Digit Entered is =======> "+ D);

   long que=N;

   int rem;

   int count=0;

   while(true){

       long temp;

       temp = (long)que/10;

       

       rem = (int) (que % 10);

       System.out.println(temp+" "+ que+" "+rem);

       if(rem==D) count++;

       que=temp;

       if(que==0) break;

       

   }

   System.out.println("The number of "+ D+"'s in "+ N + " is "+ count );;

   

   

}

}

Explanation:

  • Divide the que variable by 10 and assign its result to the temp variable.
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