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11-02-05 12:59 PM
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Acmlm's Board - I2 Archive - General Chat - A quick math question | |
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Sokarhacd

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Posted on 09-14-05 07:02 AM Link | Quote
Can anybody help me with this math question?


Why the ratio of a surface area of a sphere is not the same as the ratio of the volume of a sphere..


I can't seem to figure this out!

Thanks.
kitty
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Posted on 09-14-05 07:08 AM Link | Quote
Volume is cubed, surface area is squared. It follows, thus, that volume will increase much faster than surface area.
Sokarhacd

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Posted on 09-14-05 07:12 AM Link | Quote
I figured it was something like that, I just needed to be reassured...
Thank you for helping me out! It's most appreciated.

edit: fine then I will keep it here

another question.

This kinda makes sense, but ill ask anyway

heres the question

Jason uses the displacement method to determine the volume of a ball bearing, if the ball bearing displaces 83 mL of water, what is the volume of the ball bearing in Cubic centimetres?


well what I know is the volume of the water displaced is equal to the volume of the ball bearing, which is 83 mL, but I need to get that into cubic centimetres, which is the problem, IIRC 1mL is equal to 1 cubic centimetre.

anyone think they can help me here.


(edited by Dcahrakos on 09-14-05 02:47 PM)
NSNick
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Posted on 09-15-05 01:42 AM Link | Quote
Although this problem doesn't really need it, when you're going from one unit to another, it's best to use a conversion ratio:

83mL x 1cm3 = 83 cm3
1mL


(edited by NSNick on 09-14-05 04:42 PM)
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