Friday

July 25, 2014

July 25, 2014

Posted by **ct** on Wednesday, December 21, 2011 at 6:23am.

- math -
**Damon**, Wednesday, December 21, 2011 at 7:33amQuickly because I have to go baby sit for grand kids:

find the radius of the cone when depth = 4 feet, call it r

then

the surface area times the change in height dh = small volume change dv

so

dv = pi r^2 dh

dv/dt = (pi r^2) dh/dt

so

dh/dt = dv/dt /(pi r^2)

and dv/dt = 3 ft^2/min

**Related Questions**

Math - A tank in the shape of a cone has a diameter of 8 feet and a height of 10...

Calculus - A water tank is shaped like an inverted right circular cone with a ...

math - Suppose we pump water into an inverted right-circular cone tank at the ...

Math - Gravel is being dumped from a conveyor belt at a rate of 20 cubic feet ...

Calculus - Gravel is being dumped from a conveyor belt at a rate of 10 cubic ...

calculus - Gravel is being dumped from a conveyor belt at a rate of 50 cubic ...

calculus - Gravel is being dumped from a conveyor belt at a rate of cubic feet ...

calculus - Gravel is being dumped from a conveyor belt at a rate of 50 cubic ...

Calculus Please help! - Gravel is being dumped from a conveyor belt at a rate of...

Calculus - Gravel is being dumped from a conveyor belt at a rate of 50 cubic ...