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# The concentration of E. coli bacteria in a swimming area is monitored after a storm: t

ISBN: 9780073401102 336

## Solution for problem 14.9 Chapter 14

Applied Numerical Methods W/MATLAB: for Engineers & Scientists | 3rd Edition

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Applied Numerical Methods W/MATLAB: for Engineers & Scientists | 3rd Edition

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Problem 14.9

The concentration of E. coli bacteria in a swimming area is monitored after a storm: t (hr) 4 8 12 16 20 24 c (CFU/100 mL) 1600 1320 1000 890 650 560 The time is measured in hours following the end of the storm and the unit CFU is a colony forming unit. Use this data to estimate (a) the concentration at the end of the storm (t = 0) and (b) the time at which the concentration will reach 200 CFU/100 mL. Note that your choice of model should be consistent with the fact that negative concentrations are impossible and that the bacteria concentration always decreases with time.

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ENGR 103 Lecture 19 Resistance- the ability of an object to restrict or resist the flow of electrons in an electrical circuit - measured in ohms (Ω) Resistor- the circuit element responsible for restricting the flow of electrons - absorb energy from the electrons and dissipate it as heat - since there is a transfer of energy through a resistor,...

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