Completely solve and illustrate the problem. Show what are given, required, illustration, analysis and conclusion. Box the final answers. Use 4 decimals at all instances. 1. Engr. Mercado wishes to replace a solid transmission shaft 4.2 inches with a hollow shaft of same material and same torsional strength, considering that its weight should only be a third as much as the solid shaft. It is used to transmit 200 kW at 800 rpm, a. Design the hollow shaft for the said purpose, dimensions in inches b. Compute the volume of the hollow shaft per foot length c. What is the shearing stress

I need problems 6 and 7 solved.  I got it solved on 2 different occasions and it is not worded correctly. NOTE: Problem 1 is an example of how it should be answered. Below are 2 seperate links to same question asked and once again it was not answered correctly. 1. https://www.bartleby.com/questions-and-answers/it-vivch-print-reading-for-industry-228-class-date-name-review-activity-112-for-each-local-note-or-c/cadc3f7b-2c2f-4471-842b-5a84bf505857 2. https://www.bartleby.com/questions-and-answers/it-vivch-print-reading-for-industry-228-class-date-name-review-activity-112-for-each-local-note-or-c/bd5390f0-3eb6-41ff-81e2-8675809dfab1

I need parts 3 and 4 answered pertaining to the print provided.  I asked this question previously on here and I received the wrong answers to the 2 parts Im asking about, so I am reposting the question again to have another tutor answer it.   Part 3: I need to tell what was ommited. Part 4: I need to tell what the triangle equals? Lower right or J1 zone has the answer.

Can some one please help to solve this question following the directions and showing neat work and formulas. PLEASE AND THANK YOU!!!