Modern Physics, homework help

I have done most parts of this problem. it is just the last part where I have to find the relationship between E and A in the Equation.

Use the Equation 7.9 that I have wrote it into the homework paper to show the relationship between E and A. Look at the outline on how to get the relationship between E and A.

It won’t take long. Moreover, I have attached my answer until the last part which I want you to answer. Moreover, I have attached the question.

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