NationStates Jolt Archive


Can anyone help me answer this?

Barduvila
21-09-2006, 04:58
I just started my Physics w/ Calculus class, and already I am completely stumped. Check this problem out:

The period T of a simple pendulum is the amount of time required for it to undergo one comple oscillation. If the length of the pendulum is L and the acceleration of gravity is g, then T=2*pi*L^p*g^q, where p and q are the powers of L and g. Find the powers p and q required for dimensional consistency.

Any help would be appritiated. Thanks.
Posi
21-09-2006, 05:01
The mods think it is an attack of their power to post homework questions.
Rhaomi
21-09-2006, 05:02
Yeah... good luck with that...
Wallonochia
21-09-2006, 05:02
http://forums.jolt.co.uk/showpost.php?p=10365791&postcount=13
People without names
21-09-2006, 05:04
I just started my Physics w/ Calculus class, and already I am completely stumped. Check this problem out:

The period T of a simple pendulum is the amount of time required for it to undergo one comple oscillation. If the length of the pendulum is L and the acceleration of gravity is g, then T=2*pi*L^p*g^q, where p and q are the powers of L and g. Find the powers p and q required for dimensional consistency.

Any help would be appritiated. Thanks.

this thread is probably going to close soon as it is homework help, Mods look down on such subjects.

i think you have to isolate one at a time (do two equations) and work it out htat way. just getting it as far down as you can.

-was going to work it out for you, but it has been way too long since last mat class and im too tired
Secret aj man
21-09-2006, 05:05
I just started my Physics w/ Calculus class, and already I am completely stumped. Check this problem out:

The period T of a simple pendulum is the amount of time required for it to undergo one comple oscillation. If the length of the pendulum is L and the acceleration of gravity is g, then T=2*pi*L^p*g^q, where p and q are the powers of L and g. Find the powers p and q required for dimensional consistency.

Any help would be appritiated. Thanks.

you just gave me a headache...thanks

always remember...e=mc squared
United Chicken Kleptos
21-09-2006, 05:07
I just started my Physics w/ Calculus class, and already I am completely stumped. Check this problem out:

The period T of a simple pendulum is the amount of time required for it to undergo one comple oscillation. If the length of the pendulum is L and the acceleration of gravity is g, then T=2*pi*L^p*g^q, where p and q are the powers of L and g. Find the powers p and q required for dimensional consistency.

Any help would be appritiated. Thanks.

I'd guess 1/2 second. But that's just me.
Vegas-Rex
21-09-2006, 05:36
I just started my Physics w/ Calculus class, and already I am completely stumped. Check this problem out:

The period T of a simple pendulum is the amount of time required for it to undergo one comple oscillation. If the length of the pendulum is L and the acceleration of gravity is g, then T=2*pi*L^p*g^q, where p and q are the powers of L and g. Find the powers p and q required for dimensional consistency.

Any help would be appritiated. Thanks.

T has to be in seconds. That's what they mean by dimensional consistency. So since L has no seconds, and g is m/s^2, you know the power of g that gets you what you want. Then just make sure meters cancel.