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May 22, 2015

Homework Help: Physics..up for a challange?

Posted by Kim on Sunday, October 1, 2006 at 7:20pm.

Determine if the following physical equations are homogeneous

a) P=FV
c)F= mV^2
----
r


b) F=mV^2 (divided by r(radius)


I assume you mean dimensionally homogenous.

a) Power is work/time or force*distance/time. On the right side, force is velocity is distance/time, so force*distance/time checks.

c)
mass*length/time*length/time / length
mass*length/time^2
but force is mass*acceleration, or mass*length/time^2


O thnx...i actually had a test on it..do you know any good website that explains this?

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