## rymdenbarn 3 years ago Physics dimensional analysis help? #3 on this page: http://www.mrc.uidaho.edu/~atkinson/ECE330_EO/Summer_2009/HW/HW1Fa08_EO330.pdf

1. Libniz

yeah?

2. rymdenbarn

The question is as stated above FWIW I'm trying to switch out of Physics C into Physics B

3. rymdenbarn

there should be no math involved in this except logs ... yeah. Everything else is dimensions but I don't know if the number of atoms has dimensions

4. rymdenbarn

what the heck are you reading?

5. rymdenbarn

... #3 man

6. Libniz

m^3 * m/s^2 *m * kg/m^3 ----------------------------- = should be unit less joules/T *T

7. panlac01

do you know logs yet, rym?

8. rymdenbarn

yes naturally

9. rymdenbarn

Lol... naturally. Hehe.. heh

10. rymdenbarn

So not dimensionally correct

11. rymdenbarn

Oh wait... not necessarily so if the denom and numerator cancel

12. rymdenbarn

okay, so still no

13. panlac01

I don't think that's correct

14. panlac01

is that equipartition of energy?

15. Libniz

(m^3 *(m/s^2)*m* ((kg )/m^3)) ------------------------------ j/T * T = 1 kg m^2/s^2 ---------------------- j 1 kg m/s^2 *m ---------------------- j 1 kg* acceleration *m ---------------------- j 1* newton* meter --------------- j newton*meter=j j/j=1

16. panlac01

lib is still on question number 1?

17. Libniz

that's 3

18. Libniz

@rymdenbarn

19. rymdenbarn

So it DOES cancel... it's a yes then?

20. Libniz

yes

21. rymdenbarn

Thanks