Hi, Im a mature student studying a distance learning HNC so I don't have anybody to turn to help with a problem very easily. I don't expect anybody to do the work for me, but I'm wondering if anybody can help with this question?
You are testing a prototype loudspeaker for your Audio division, which may possibly be used in smoke-filled environments when nuclear reactor emergencies occur. A senior colleague has asked you to use dimensional analysis to predict how the speed of sound (u) in a gas may be influenced by the gas pressure (p), gas density (r) and acceleration due to gravity (g).
I have:
pressure P = ML^-1T^-2
density r = ML^-3
acceleration g = LT^-2
Speed v = LT^-1
LT^-1 = (ML^-1T^-2)^A (ML^-3)^B (LT^-2)^C
LT^-1 = M^A+B L^C-A-3B T^-2A-2C
M 0=A+B
L 1=C-A-3B
T -1=-2A-2C
Ive gotten this far and now I'm stumped on whether I am right or wrong, where I'm wrong, and how to solve for ABC.
any help greatly appreciated.
Lloyd