write me all steps ,please.

1. A particle of mass m is in the ground state of an infinite potential energy well of width L. The energy of the particle is 2.0 eV

(a) How much energy must be added to the particle to cause it to jump to the first excited state? [ show your solution]

(1) 2.0 eV             (2) 4.0 eV              (3) 6.0 eV                  (4) 8.0 eV

(b) Suppose the particle is in the second excited state (n = 3) from which it can jump to any lower state by emitting a photon whose energy is equal to the difference in the

energies of the two states. Considering all possible jumps that lead eventually to the ground state, which photon energy would NOT be observed? [ show your solution]

(1) 6.0 eV           (2) 10.0 eV                (3) 12.0 eV                     (4) 16.0 eV

(c) What would be the ground-state energy of this particle if the width of the well were changed to 2L? [ show your solution]

(1) 0.5 eV               (2) 1.0 eV                    (3) 2.0 eV                     (4) 4.0 eV

Three couples and two single individuals have been invited to an investment seminar and have agreed to attend. Suppose the probability that any particular couple or individual arrives late is 0.39 (a couple will travel together in the same vehicle, so either both people will be on time or else both will arrive late). Assume that different couples and individuals are on time or late independently of one another. Let X = the number of people who arrive late for the seminar.

(a) Determine the probability mass function of X. [Hint: label the three couples #1, #2, and #3 and the two individuals #4 and #5.] (Round your answers to four decimal places.)

(b) Obtain the cumulative distribution function of X. (Round your answers to four decimal places.)

Use the cumulative distribution function of X to calculate

P(3 ≤ X ≤ 6).

While preparing the bank reconciliation, an accountant with Elliter noticed that an error had been made in recording a deposit received by the company. The receipt had been recorded by the company as $729 yet the correct amount of the deposit on the bank statement was $279. Which of the following reconciling adjustments is necessary?

Question 7 a. The radius of curvature of a plano-convex lens is measured to be 2 metres, and the focal length in air (n = 1) is measured to be 4 metres. i. What is the power of the lens? [2 marks] ii. What is the refractive index of the lens material? [4 marks] b. A toy Dalek is placed 40 cm in front of a converging lens of focal length f1 = 20 cm; another converging lens 60 cm behind the first has a focal length of f2 = 10 cm. i. Draw a ray trace diagram for this optical system [4 marks] ii. Show where the image produced by the first lens appears on your diagram. Is it a real or virtual image? [3 marks] iii. What is the magnification of the object at the first image? [1 marks] iv. Show where the final image appears on your diagram. Is it a real or virtual image? [3 marks] v. What is the magnification of the first image at the final image? [1 mark] vi. What is the magnification of the object at the final image? [2 marks]

3.2     You put $1000 in a savings account at 10% annually compounded interest.                                                                                                                                      

a. How much could you take out each year and still keep the original $1000 in the account? Complete the table below to support your conclusion.

b. If you left half of the interest earnings in the account, at what rate would the balance grow from year to year? Complete the table to show your calculations.

c. If you took out 80% of the interest earnings in the account, at what rate would the balance grow each year? Complete the table to show calculations.

C++ 14.11 Lab # Map

Write a menu driven program to perform following operations using a map container that stores the information about USA Population (In Million).

@@@Menu@@@
1. Add Information
2. Display Information
3. Update Information
4. Erase Information
5. Clear Information

For example, Suppose the map initially contains following information (Use emplace() function to store the information)
2010, 309.33
2011, 311.58
2012, 313.87
2015, 320.74
2016, 323.07

The program should produce the desired output when a valid input is provided, as follows:

1. If the Input is:
1
2018
329.16
The output should be:
Record Added: USA population in 2018 is 329.16 Million.

2. If the Input is:
2
2015
The output should be:
USA population in 2015 is 320.75 Million.

3. If the Input is:
3
2015
321.88

The output should be:
Record Updated: USA population in 2015 is 321.88 Million.

4. If the Input is:
4
2015

The output should be:
Record Deleted: USA population in 2015 was 321.88.

5. If the Input is:
5

The output should be:
All records Deleted.

Copy the program Stats.java to your computer and implement the TBI (To Be Implemented) stats() and checkIfSorted() methods following the instructions given in their method comment blocks.

-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Stats.java

import java.util.*;

/*
 * This Java application calculates some statistics
 * given an array of integers.
 *
 * @creator gdt
 * @created 02017.12.15
 * @updated 02019.01.21  morphed the assignment
 */

interface StatsConstants {
   // used by print() to format output...
   String PRINT_BEGIN = "[";
   String PRINT_END = "]";
   String PRINT_SEPARATOR = ",";

   // checkIfSorted() return values...
   int UNSORTED = 0;
   int ASCENDING = 1;
   int DESCENDING = 2;
   int SKIP = 3;
}

public class Stats {

   public static void main(String[] argv) {

      int[][] data = { 
         null,
         { },
         { 0 },
         { 1, 2 },
         { 1, 1 },
         { 1, 3, 2 },
         { 5, 5, 5, 5, 5 },
         { 2, 0, 5, 4, 8, 5 },
         { 1, 5, 6, 6, 6, 7, 9 },
         { -7, 0, 0, 3, 3, 3, 4, 4 },
         { -2, -2, 0, 1, 1, 2, 2, 2 },
         { -4, -2, 42, 12, 12, 3, -2 },
      };
      for (int i = 0; i < data.length; i++) {
         switch (checkIfSorted(data[i])) {
            case StatsConstants.SKIP:
               if (data[i] == null)
                  System.out.println("null element\n");
               else if (data[i].length == 0) 
                  System.out.println("empty array\n");
               else
                  System.out.println("???\n");
               continue;
            case StatsConstants.UNSORTED:
               Arrays.sort(data[i]);
               break;
            case StatsConstants.DESCENDING:
               reverseArray(data[i]);
               break;
         }
         printResults(stats(data[i]));
      }
   }

   private static void reverseArray(int[] x) {
      for (int i = 0, j = x.length - 1 ; i < j; i++, j--) {
         int k = x[i];
         x[i] = x[j];
         x[j] = k;
      }
   }

   private static void printArray(int[] x, boolean nl) {
      System.out.print(StatsConstants.PRINT_BEGIN);
      for (int i = 0, j = x.length - 1; i < j; i++)
         System.out.print(x[i] + StatsConstants.PRINT_SEPARATOR);
      System.out.print(x[x.length - 1] + StatsConstants.PRINT_END);
      if (nl) System.out.println();
   }

   private static void printResults(Results r) {
      printArray(r.data, true);
      StringBuffer sb = new StringBuffer("...mean: ");
      sb.append(r.mean).append("; median: "). append(r.median).
         append("; mode: "). append(r.nomode ? "modeless" : r.mode).
         append("; cardinality: ").append(r.cardinality).
         append("; range: ").append(r.range);
      System.out.println(sb);
      System.out.println();
   }

   static class Results {
      public int[] data; 
      public int cardinality;
      public int range;
      public double mean;
      public double median;
      public int mode;
      public boolean nomode;
   }

   /*
    * TBI (To Be Implemented)...
    *
    * Instantiates and returns a Results object that
    * contains the calculations (statistics) for the 
    * int[] parameter.  
    *
    * Note: 'mode' is a single solitary number repeated 
    * more often than any other number. The Results object
    * nomode variable is set to true if there is no mode.
    *
    * The stats() method assumes the int[] is sorted
    * in ascending order.
    *
    * @param data  an array if ints
    * @return a Results object
    */
   private static Results stats(int[] data) {
      
   }

   /*
    * TBI (To Be Implemented)...
    *
    * Checks if the contents of the int[] parameter is sorted.
    * The method returns values defined in interface StatsConstants.
    *
    * @param  data  an array of integers
    * @return SKIP if data is null or the array is empty;
    *         else UNSORTED or DESCENDING or ASCENDING
    */
   private static int checkIfSorted(int[] data) {

   }

}

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

The program output must match the following. Note: Every output line that starts with ... is followed by a blank line:

null element

empty array

[0]
...mean: 0.0; median: 0.0; mode: 0; cardinality: 1; range: 0

[1,2]
...mean: 1.5; median: 1.5; mode: modeless; cardinality: 2; range: 1

[1,1]
...mean: 1.0; median: 1.0; mode: 1; cardinality: 2; range: 0

[1,2,3]
...mean: 2.0; median: 2.0; mode: modeless; cardinality: 3; range: 2

[5,5,5,5,5]
...mean: 5.0; median: 5.0; mode: 5; cardinality: 5; range: 0

[0,2,4,5,5,8]
...mean: 4.0; median: 4.5; mode: 5; cardinality: 6; range: 8

[1,5,6,6,6,7,9]
...mean: 5.714285714285714; median: 6.0; mode: 6; cardinality: 7; range: 8

[-7,0,0,3,3,3,4,4]
...mean: 1.25; median: 3.0; mode: 3; cardinality: 8; range: 11

[-2,-2,0,1,1,2,2,2]
...mean: 0.5; median: 1.0; mode: 2; cardinality: 8; range: 4

[-4,-2,-2,3,12,12,42]
...mean: 8.714285714285714; median: 3.0; mode: modeless; cardinality: 7; range: 46

(SPSS outputs such as tables and graphs must be copied and pasted to your document).

Part 1

Please open “LIFE” data. The data is related to results of a survey that asks people to grade themselves in terms of Conscientiousness and Life satisfaction. Conscientiousness grading scale is from 1 to 10 whereas Life satisfaction criteria was graded from 1 to 80. And each person, surveyed grade himself by own for both criteria. Gender information is included in data as well. The objective of survey is whether life satisfaction can be explained with conscientiousness and gender. So, the dependent variable is defined as life satisfaction and the independent variables are gender and conscientiousness. Please do the following steps:

1) Run a linear regression in SPSS the dependent variable is life satisfaction and the independent variables are gender and cons. Copy and paste the SPSS output to your document.

2) Write down the regression equation.

3) Test if gender has no significant effect on life satisfaction at alpha=0.05 significance level.

4) Give a complete interpretation of the slope coefficient of gender

   LIFE DATA:

In a region that must reduce emissions, three polluters currently emit 30 units of emissions together. The three firms have the following marginal control cost functions that describe how marginal costs vary with the amount of emissions each firm reduces.

Suppose this region needs to reduce emissions by 18 units and plans to do it using a form of cap-and-trade after grandfathering total allowances.
(a) How many emission allowances will the control authority grandfather (i.e., give for free)?
(b) Suppose the authority grandfathers an equal number of allowances to each firm. In other words,
each firm should reduce the equal amount of emission out of 18 total reduced units. What is the
total control cost each firm needs to pay for this equal emission reduction?
(c) Assuming no market power and that demand equals supply, the companies can trade their
emission allowances in a market for the emission permit. What price would be paid for those
allowances?
(d) How many allowances would each firm be expected to buy or sell?
(e) If the control authority decided to use an emission tax rather than cap-and-trade, what tax rate
would achieve the 18-unit reduction cost-effectively? Why?