Sunday

December 21, 2014

December 21, 2014

Posted by **Gabe** on Saturday, February 13, 2010 at 1:18am.

Does 1.4 ft/min sound right? The computer is saying it's wrong.

- calculus -
**drwls**, Saturday, February 13, 2010 at 3:14amThe water surface area multiplied by the rate of water level rising equals the volume flow rate. Let's write this as

A*dh/dt = dV/dt = 14 ft^/min.

All you need is the area of water surface, A. At a depth of 8 inches, water is 2/3 of the way to the top and the width of the water channel is (2/3)*4 = 8/3 feet. The total surface area is

(8/3) ft x 15 ft = 40 ft^2

Therefore

dy/dt = 14 ft^3/min/40 ft^2 = 0.35 ft/min

- question -
**Zhao**, Wednesday, February 29, 2012 at 3:13pmAnyone knows how to major in school of journalism ?

**Answer this Question**

**Related Questions**

calculus - A trough is 16 ft long and its ends have the shape of isosceles ...

calculus - please help i am lost at what is dy/dx and what is dy/dt. A trough is...

Calculus - A trough is 15 ft long and 4 ft across the top, as shown in the ...

calculus - A trough is 12 feet long and 3 feet across at the top. It ends are ...

Calculus - A trough is 12 ft long and has ends that are isosceles triangles that...

calculus - A trough is 6 feet long and has ends that are isosceles triangles ...

calculus - 6. A trough is in the shape of a triangular prism. It is 5 feet long ...

math - A trough is 11 feet long and has ends that are isosceles triangles that ...

math - The trough is in the shape of a triangular prism. It is 5 ft long and its...

math - The trough is in the shape of a triangular prism. It is 5 ft long and its...