can someone help me with my question please? I really have no clue about what steps to perform.
wow
A water tank is in the shape of a hemisphere with a radius of 10 ft, and the base of the hemisphere is 30 ft off the ground. |dw:1425551096718:dw| How much work is required to fill in the tank with water pumped from the ground into the bottom of the tank? (the density of water is 62.4 lb/ft^3 )
(this is my question)
What steps should I perform?
i suck in geometry sorry
is this a calculus 2 work problem? or what level math class?
i dont want to throw integrals and radius of a disk at you if your not in cal 2
we can use the integral: $$\Large \int_{a}^{b} \rho y A(y) dy $$
lets take a cross section of the hemisphere
find the volume of the hemisphere and add it to the volume of the cylinder!
|dw:1425564114639:dw|
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