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Dimensional Analysis exam question

I have done part 1 and 2 pretty easily, but don't understand what I have to do for the first part of part 3 where it asks to compute B. It might be quite straight forward but I can't see what I'm meant to do.

I got ML^(-1)T^(-2) for part 1 and v = (B/p)^(1/2) for part 2.

Thanks!

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Reply 1

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