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Maarya
03-03-2007, 03:43 PM
:D :sl:

for calculating the discharge of a river you need to do velocity x area, but how do i work out the area of a river??? i know you need to use the river cross-section, and i've got that, but i dont understand how you do it :grumbling

help!!!! anyone please!!!!!

i really appreciate your help, thankyou in advance. :D
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deen_2007
03-03-2007, 03:47 PM
sorry sis....i left geography at GCSE....my worst subject ever.......
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Maarya
03-03-2007, 03:50 PM
i would've aswell, but i had no other choice but to chose music, pe, dance etc so i did geog...its not too bad - u get to push the teacher in the river :D

help....anyone....i need to hand it in on monday imsad
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deen_2007
03-03-2007, 03:52 PM
lol............i just didnt pay any attention to it...was too lazy about it...but i guess if i sit in the classes now...id probably be able to push the teacher in the th river too!!

(funny how when you leave a certain level in education..it is easier for u to understand it then & you also want to study it)
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*Hana*
03-03-2007, 03:54 PM
Salam Alaikum Sister:

Ok, I have absolutely no clue, but, I found this online and maybe it will help you:

Measuring River Discharge

Hope it helps. :)

Wasalam,
Hana
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afriend
03-03-2007, 04:00 PM
Wow, this is pretty...tough lol. This is why they don't do geography at GCSE level at my school. Good!

Well look at it from a logical point of view, using estimation. Area=Length x Width, so split up the river into parts and use that. if you find yourself with bends...I suggest you....think extra hard. Try using Area.Circle=PixRadius divided by 2. :confused: subhanallah...Some really hard stuff lol.

At the end add up all the areas you found. Apart from that I don't really know, unless there's some sort of universal eq. that brings light to this situtation...Google didn't help either :mmokay:

Hope that helps :hiding:



:w:

Edit: That link is very good :p

PS.

you can use the equation and make 'A' the subject. for example:

Q=VxA

Q=A
V

Give that a try :confused: Which will only work if you have the value for Q and V :mmokay: grr! Maths is annoying
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Maarya
03-03-2007, 04:08 PM
thanks for your help guys...i've been digging around in my room for the last hour and only now have i found my notes...so i should be ok now.

thanks anyway :D
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afriend
03-03-2007, 04:11 PM
lol alhamdulillah...This hasn't got anything to do with GCSE maths though does it? :heated: cos if it is I'm done for :uuh:
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Maarya
03-03-2007, 04:24 PM
nahh, dnt worry, i'm sure its just geog
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strider
03-03-2007, 04:26 PM
I was just about to suggest using the triangle formula. Those rock!

I hated geography. Good luck with your coursework!
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deen_2007
03-03-2007, 04:30 PM
the only subject i like & study a lot is psychology...............so if u ever need help in that....pls ask:happy:
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