Chapter 6.1, Problem 42E

Introduction Some number of teams are participating in a race. You are not told how many teams are participating but you do know that:  Each team has a name, which is one of the uppercase letters A-Z.  No two teams have the same name, so there are a maximum number of 26 teams.  Each team has the same number of members.  No two runners cross the finish line at the same time – i.e. there are no ties. At the end of the race we can write the results as a string of characters indicating the order in which runners crossed the finish line. For example: ZZAZAA We can see there were two teams: A and Z. Team A’s runners finished in 3rd, 5th and 6th place. Team Z’s runners finished in 1st, 2nd and 4th place. Scoring the race Each runner is assigned a score equal to their finishing place. In the example above team Z’s runners achieved scores of 1, 2 and 4. Team A’s runners scores were 3, 5, and 6 respectively. The team’s score is the sum of the members score divided by the number of people on…

A-Write a program to compute the drag force F, (in Newton) When a body swims through fluid, the drag force is given by 1 F₁ =pV²ACD Take: p= 1000 kg/m3 is the density of fluid, V 1.25 (m/s) is the swimming speed, A=0.25 m² is the frontal area of the body, Cp=0.09 is the coefficient of drag. Matlap

Matlab A rocket is launched vertically and at t-0, the rocket's engine shuts down. At that time, the rocket has reached an altitude of ho- 500 m and is rising at a velocity of t125 m/s. Gravity then takes over. The height of the rocket as a function of time is: h(t)- ho+vot-gt², t20 where g = 9.81 m/s². The time t=0 marks the time the engine shuts off. After this time, the rocket continues to rise and reaches a maximum height of himax meters at time t-tmax. Then, it begins to drop and reaches the ground at time t = tg. a. Create a vector for times from 0 to 30 seconds using an increment of 2 s. b. Use a for loop to compute h(t) for the time vector created in Part (a). e. Create a plot of the height versus time for the vectors defined in Part (a) and (b). Mark the z and y axes of the plot using appropriate labels. d. Noting that the rocket reaches a maximum height, Amax, when the height function, h(t), attains a maxima, compute the time at which this occurs, tmax, and the maximum…

MATLAB QUESTION - As of 2018, the population of "A city" is 646 thousand and the population of "B city" is 269 thousand. While the population of "A city" decreases by 7.1% every year, the population of "B city" increases by 12.9%. According to this information, write a program that calculates the year in which the population of "B city" passed the population of "A city".

Matlab A rocket is launched vertically and at t-0, the rocket's engine shuts down. At that time, the rocket has reached an altitude of ho- 500 m and is rising at a velocity of to 125 m/s. Gravity then takes over. The height of the rocket as a function of time is: h(t)-ho+vot-gt², t20 where g -9.81 m/s². The time t-0 marks the time the engine shuts off. After this time, the rocket continues to rise and reaches a maximum height of Amax meters at time t = tmax. Then, it begins to drop and reaches the ground at time t = tg. a. Create a vector for times from 0 to 30 seconds using an increment of 2 s. b. Use a for loop to compute h(t) for the time vector created in Part (a). e. Create a plot of the height versus time for the vectors defined in Part (a) and (b). Mark the and y axes of the plot using appropriate labels. d. Noting that the rocket reaches a maximum height, max, when the height function, h(t), attains a maxima, compute the time at which this occurs, max, and the maximum height,…

Example-6 A number of rivers (N), each river has three (pH) values. Write a program to read the (pH) values and find the average for each river, then print the state of water (neutral, acidic, alkaline). if pH =7 neutral pH > 7 alkaline pH

38. The geometric mean g of n numbers x; is defined as the nth root of the product of x;: g=Vx1x2X3•…Xn (This is useful, for example, in finding the average rate of return for an investment which is something you'd do in engineering economics). If an investment returns 15% the first year, 50% the second, and 30% the third year, the average rate of return would be (1.15*1.50*1.30)") Compute this.

Problem Description:  Standard telephone keypads contain the digits zero through nine. The numbers two through nine each have three letters associated with them (Fig. 1). Many people find it difficult to memorize phone numbers, so they use the correspondence between digits and letters to develop seven-letter words that correspond to their phone numbers. For example, a person whose telephone number is 686-2377 might use the correspondence indicated in Fig. 1 to develop the seven-letter word “NUMBERS.” Every seven-letter word corresponds to exactly one seven-digit telephone number. A restaurant wishing to increase its takeout business could surely do so with the number 825-3688 (i.e., “TAKEOUT”).  Fig. 1: Telephone keypad digits and letters.  Every seven-letter phone number corresponds to many different seven-letter words, but most of these words represent unrecognizable juxtapositions of letters. It’s possible, however, that the owner of a barbershop would be pleased to know that the…

Modify the BarChart program from Chapter 6 Exercise 13 to accept the number of points scored by each player in a season. The bar chart displays one asterisk for each 10 points scored by a player. For example, if a player has scored 48 points, then display 4 asterisks. An example of the program is shown below: Enter points earned for the season by Art >> 10 by Bob >> 20 by Cal >> 30 by Dan >> 40 by Eli >> 50 Points for Season (each asterisk represents 10 points) Art * Bob ** Cal *** Dan **** Eli *****   import java.util.Scanner; public class BarChart2 {     public static void main (String[] args) {         Scanner input = new Scanner(System.in);         int artPoints;         int bobPoints;         int calPoints;         int danPoints;         int eliPoints;         final int AMT_EACH_ASTERISK = 10;         System.out.println("Enter points earned for the season");         System.out.print("    by Art >> ");         artPoints = input.nextInt();…