How do you figure out the cf of a sonotube?

[ikpthegame 10+ year member]

well just like the title says how do i figure out the airspace inside of a sonotube?

Click to read more...

 

[BrianChia 10+ year member]

area of a circle x height

= (pi * radius^2) x height

 

[jmanpc 5,000+ posts]

pi*r^2*h

//content.invisioncic.com/y282845/emoticons/fyi.gif.9f1f679348da7204ce960cfc74bca8e0.gif

 

[ikpthegame 10+ year member]

ok after that how do i find the ft^3?

 

[mlstrass 5,000+ posts]

http://www.quux.net/roo/diy/sonosub/sonocalc.html

 

[twisztdauthorit 10+ year member]

honestly people, is it that hard? I believe they taught us this in grade school...

 

[Railrocker 10+ year member]

If you cant do the math, fill it with packing peanuts then dump them into a square box and take your measurements.

 

[BrianChia 10+ year member]

If you cant do the math, fill it with packing peanuts then dump them into a square box and take your measurements.

OK, but how do you figure ou the Cf of the square box? //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Railrocker 10+ year member]

OK, but how do you figure ou the Cf of the square box? //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Um...... Um....... I know this give me a minute........ Um.........

Ya know you probably have a point, if he cant do the math after being given the **** equation hes probably not going to run out and buy packing peanuts. //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif

 

[BrianChia 10+ year member]

ok after that how do i find the ft^3?

OK the first thing you need to know is that there's 12 inches in a foot.

Once you grasp that, there are 12^2 sq. in. = 144 sq. inches in a square foot

If you can understand that then you'll see that there are 12^3 cu. in. = 1728 cu. in. in a cubic foot.

 

[IamDeMan 5,000+ posts]

OK the first thing you need to know is that there's 12 inches in a foot.
Once you grasp that, there are 12^2 sq. in. = 144 sq. inches in a square foot

If you can understand that then you'll see that there are 12^3 cu. in. = 1728 cu. in. in a cubic foot.

Yes, but what it do?

 

[skeptikal Premium Member]

Lol it's called Volume....

I suggest you go back to grade school buddy, learn basic math all over again.

 

[Immacomputer 10+ year member]

I guess there is always a need for garbage men... no need to go back to school; you're already qualified for that position!

 

[PV Audio 5,000+ posts]

Y'all are mean. //content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif Radius squared times pi times the height (IN INCHES) gives you the volume in cubic inches. Divide that by 1728 (one cubic foot) to get the volume in cubic feet.

 

[Supergumby5000 5,000+ posts]

this thread gave me a good belly chuckle. thank you retarded OP