Question: Problem to create a loop

Hello!

Hope everyone good. I am facing problem to define a loop. Actually I want to solve the attached file for different values of H like H=[100,125,140,160] for this I don't know how to tackle it. My program do working on single value of H. Please solve my problem as soon as possible. I am waiting your positive response. 

Help.mw

With my best regards and sincerely.

Muhammad Usman

School of Mathematical Sciences 
Peking University, Beijing, China

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