Problem A9:
Consider the tank containing a strange fluid shown below. The fluid
has a depth h. The pressure
at the surface of the fluid is P_{0}, and increases with
depth x according to the following formula:
P = P_{0}(1+n_{2}(x/h)^{n1}).
What is the net force on the whole side of the tank? If the net force
is F = n_{3} P_{0}Lh, what is n_{3}? Note that
all integers are unitless.

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