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- Homework Statement
- Uncertainty of Speed of Sound in water, using Mackenzies Equation

- Relevant Equations
- c = 1448.96 + 4.591T - 5.304 x 10-2T2 + 2.374 x 10-4T3 + 1.340 (S-35) + 1.630 x 10-2D + 1.675 x 10-7D2 - 1.025 x 10-2T(S - 35) - 7.139 x 10-13TD3

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