 #1
Lloyd_Towler
 4
 0
 Homework Statement:
 Uncertainty of Speed of Sound in water, using Mackenzies Equation
 Relevant Equations:

c = 1448.96 + 4.591T  5.304 x 102T2 + 2.374 x 104T3 + 1.340 (S35) + 1.630 x 102D + 1.675 x 107D2  1.025 x 102T(S  35)  7.139 x 1013TD3
T = temperature in degrees Celsius
S = salinity in parts per thousand
D = depth in metres
C (speed of sound) = 1436.30 m/s
Temperature= 7.5°C ±0.5
Salinity= 0 (no error)
Depth= 17.5cm ±0.5
I need to calculate the overall uncertainty of the value I have obtained for the speed of sound in water, using Mackenzies equation... I am not sure in what way to combine the above uncertainties. Any help would be greatly appreciated!
Lloyd
Lloyd