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# Can anyone good at maths or physics, give me quick help asap

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1. Doing some revision for a physics test here, keep getting confused with this simple bit of math
T = 2pi √((h^2+k^2)/gh))
What is the unit of K?
h= m
g= ms^-2
t= s
2pi = no unit
2. Find an equation for k in terms of the other variables. Then remove all constants and substitute in the units. Then simplify.
3. (Original post by TimGB)
Find an equation for k in terms of the other variables. Then remove all constants and substitute in the units. Then simplify.
I think you can just say that if you are h^2 to k^2 then they need the same units?
4. (Original post by Zacken)
I think you can just say that if you are h^2 to k^2 then they need the same units?
Good point.
5. (Original post by Zacken)
I think you can just say that if you are h^2 to k^2 then they need the same units?
I never thought dimensional analysis would actually come in useful
6. (Original post by Student403)
I never thought dimensional analysis would actually come in useful
I think it's one of the most useful tools in a physicists toolbox! Get ready for lots of it at Cornell.
7. (Original post by Zacken)
I think it's one of the most useful tools in a physicists toolbox! Get ready for lots of it at Cornell.
Ooh.. Well I do enjoy it
8. (Original post by Student403)
Ooh.. Well I do enjoy it
I have a love/hate relationship, depends on how rigorous I'm feeling that particular day.

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