Suppose a pipe flow will be studied, and the liquid must be kept chilled at 10*C to prevent cavitation.

The velocity is measured by a turbine meter as 12.5 0.1 m/s, which was calibrated with water.

The liquid properties are measured at 20*C and 1atm pressure:

a graduated cylinder is available with markings every 10cm3; an electronic balance is calibrated and tared with the empty cylinder; substance is added to reach 100cm3 and the mass reading is 120g 0.1 g.

an Ubbelohde viscometer is used to measure kinematic viscosity at 2.3 cSt 0.2%; note that cSt is centistokes--a unit equivalent to 1mm²/s.

1. 1. Calculate the density and the uncertainty in the density.
   2. Derive an expression for uncertainty in Reynolds number; leave symbolic but specify which values would be used for each term.
   3. Can you identify any errors? If so, please list them.