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Name and describe 3 economic costs that a city can encounter when they have a Sinkhole?


What are the 5 main main macroeconomics objectives?

 In the endogenous growth model of Romer (1990), workers can, without costs,

shift between the production of inputs and R&D. Imagine instead that the fraction

of researchers in the economy is a fixed parameter that cannot be changed. Then,

conjecture what happens to the responsiveness of the growth rate in the economy to

the degree of substitutability among the varieties of ideas, φ.


How many electrons can fill the p-subshell


Uber has a monopoly on ride-sharing services. In one town, the demand curve on weekdays is given by the following equation: P = 50 - Q. However, during weekend nights, or peak hours, the demand for rides increases dramatically and the new demand curve is P = 100 - Q. Assume that marginal cost is zero.


a. Determine the profit-maximizing price during weekdays and during peak hours. [4]

b. Determine the profit-maximizing price during weekdays and during peak hours if MC = 10 instead of zero. [4]   

c. Draw a graph showing the demand, marginal revenue, and marginal cost curves during peak hours from part (b), indicating the profit-maximizing price and quantity. Determine Uber’s profit and the deadweight loss during peak hours, and show them on the graph. [8]


I would like to know the volume of ammonium hydroxide required to add to an aqueous mixture of sulphuric acid and acetic acid to bring the pH up to 5

NH4OH(aq)+ CH3COOH (aq) = CH3COONH4(aq) + H2O(l)

2NH4OH(aq) + H2SO4(aq) -> 2(NH4)+SO4(aq)2- + 2H2O (l)

Sulphuric acid molarity: 0.08 mol/L - 6597 mols total - 1.07 pH

Acetic acid molarity: 0.09 mol/L - 7176 mols total - 2.89 pH





5. Two shafts 30 in. apart, each carrying a four-step pulley, are to be connected by a cross belt. The driving shaft is to turn 180 rpm while the driven shaft is to turn 50, 150, 250, and 600 rpm. The smallest step of the driver is 10 in. in diameter. Find (a) the diameters of all the steps, (b) angle of contact for each pair of pulleys, and (c) belt length. PLEASE EXPLAIN THE DEATILED ANSWER WITH SOLUTION.


String Concatenation


Disha has three strings A, B, and C consisting of lowercase letters.She also has a string T consisting only of characters 1, 2 and 3.

She wants to concatenate the three strings according to the characters in T.

Your task is to print the final output string.


Note: Formally, follow the below instructions:

* For each integer i such that 1<=i<=|T|, let the string si be defined as follows:

  • A if Ti = 1.
  • B if Ti = 2.
  • C if Ti = 3.

*Concatenate the strings s1,s2,...,s|T| in this order and print the resulting string.


Sample Input1

mari

to

zzo

1321


Sample Output1

marizzotomari


Unique Matrix

You are given a N*N matrix. write a program to check if the matrix is unique or not. A unique Matrix is a matrix if every row and column of the matrix contains all the integers from 1 to N


Input

The first line contains an integer N.

The next N lines contains N space separated values of the matrix.


Output:

The output contains a single line and should be True if the matrix is unique matrix and False otherwise.


Sample input:

4

1 2 3 4

2 3 4 1

3 4 1 2

4 1 2 3

Sample output:

True


Sample Input2

4

1 2 3 3

2 3 4 1

3 4 1 2

4 1 2 3

Sample Output

False



Scoring

A group of people(P) are playing an online game. Their scores are stored in the order of their entry time in S. Each integer S[i] corresponds to the score of the person Pi.

For each person Pi you have to report the number of people who played after the person and scored less than the person.


Input

The first line contains a single integer N.

The second line contains N space-separated


Output

The output should contain N space-separated integers representing the number of people who played after the person and scored less than the person.


Explanation

Given S = 13 12 11 Score of P1 is 13. Score of P2 is 12. Score of P3 is 11.The number of people who played after P1 and scored less than 13 is 2(12, 11). The number of people who played after P2 and scored less than 12 is 1(11). The number of people who played after P3 and scored less than 11 is 0.The output is 2 1 0.


Sample Input 1

3

13 12 11

Sample Output 1

2 1 0

Sample Input 2

4

4 3 5 2

Sample Output 2

2 1 1 0


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