Need better accurate answers to get a first-class grade, please if the writer has not got knowledge in advanced material selections inform me from the beginning.

The attachment has three files: ( the assignment questions, and the answers which need to be corrected and improved and the PDF has the article for question 4.
Need Better accurate answers to get a first-class grade, Please if the writer has not got knowledge in advanced material selections inform me from the beginning.

Answer the following review questions for each chapter.

Answer the following Review questions for each chapter. Depending on your book, these questions are either found at the end of the chapter or at the end of the book. Keep your answers short, to the point, and in your own words.
Ch. 17: 17.1, 17.2, 17.3, 17.9
Ch. 18: 18.2, 18.3, 18.13, 18.26
Ch. 19: 19.1, 19.2
Ch. 20: 20.1, 20.4
Ch 21: 21.1, 21.9, 21.24
Ch 22: 22.1, 22.2
Ch 23: 23.1, 23.5
Ch 24: 24.4, 24.5, 24.22
Ch 25: 25.2, 25.8

Write down the answers for the volume of the part and location of the center of mass for each exercise, and the major steps you have taken to build the models.

1-. Write down the answers for the volume of the part and location of the center of mass for each exercise, and the major steps you have taken to build the models.
2-Submit the the three part (sldprt) files with the scanned answer in 1. by using Solid work

Choose a 41-grid point mesh with

Hello,
Please answer the following exercise as per given instructions
Instruction:
If you were caught copying program or code from online source, you will receive
zero score for this project.
Project Prompt:
Solve the wave equation
0
u u
t x
 
+ =
 
using
i.
First order upwind scheme
ii. MacCormack scheme
for the initial conditions
u x( ,0) 1 = x 10
u x( ,0) 0 = x 10
and Dirichlet boundary conditions.
Choose a 41-grid point mesh with
 =x 1
and
compute to t=18. Solve this project for

= 1.0, 0.6, and 0.3.
Each student has to submit the following items to Canvas portal to receive full credits:
a. Tabulated results of u for exact and numerical solutions at t=18 (2 points)
b. Graphs for comparison between exact and numerical solutions (4 points)
c. An electronic MATLAB file for my code execution. (4 point

Hello tutors, find the question in the attachments .i want the detailed answer f

Hello tutors, Find the question in the attachments .I want the detailed answer for all the four combination in a spread sheet with constraints and formulae? only correct answer will be accepted and dont hesitate to ask any furthur information regarding to the question?