P Po+ (7-x)D develop a general expression for the mass contained in the region indicated by 0SESL 0sysl 0SISL ection 3.2 3. To describe flow of natural gas in a pipeline, a utility company uses mass flow rates In a 10 inch nternal diameter pipeline, the flow is 20,000 lb/h. The average density of the gas is estimated to be 10 kg/m What is the volumetric flow rate in ft/s ? What is the average velocity inside the pipe in m/s? 3-4. For the coating operation described in Example 3.2, we have produced an diameter of 125 micrometers. The speed of the coated fiber at the take-up wheel is 4.5 meters per second and the desired thickness of the polymer coating is 40 micrometers. Assume that there is no change in the polymer density and determine the volumetric flow rate of the coating polymer that is required to achieve a thickness of 40 micrometers optical fiber having a

Why is a linear calibration curve important?  Couldn't interpolation be used to predict values within the calibration range?

Using the data below, construct a calibration curve. Include the error bars and the equation of the line and the linearity (R2) of the curve.  Calcium concentration (ppm) (X-data) Absorbance (Y-data) Run 1 Absorbance (Y-data) Run 2  Absorbance (Y-data) Run 3 0.3 1109 1069 1155 1.2 1225 1168 1233 2.1 1472 1319 1389 4.2 1497 1523 1472 8.0 1833 1898 1849 16 2066 2012 2051

Q2/A) Reduce the following below using Masson's method: G7 G6 G5 G1 G2 G3 G4 H₁ H₂ H3 H4 H5 H6