Question

In the dimensional analysis challenge problem 1 (introduction), what does the variable "b" represent?

Answer 1

It's in the solution btw. And here's the solution so it's easy to find

Answer 2

i think that "b" is some constant value.
initially...we can write it as
\[t \alpha \rho^V h ^W g ^X A1 ^ Y A2 ^ Z . \]
where \[\alpha \] means 'is proportional to'

therefore
\[t =b \rho^V h ^W g ^X A1 ^ Y A2 ^ Z . \]