What is the mean "flow of pollutant", QC, into the lake in grams/min? Show calculations. Since the standard deviation ef the concentration, C, is 2 grams/m', what is the standard deviation of the "flow of pollutant", QC, in grams/min? Show calculations.

What is the mean "flow of pollutant", QC, into the lake in grams/min? Show calculations. Since the standard deviation ef the concentration, C, is 2 grams/m', what is the standard deviation of the "flow of pollutant", QC, in grams/min? Show calculations.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Problem 2 Normal Distributions
A lake has one input stream with a flow rate of 4 m/min. The value of the concentration, C,
was monitored. The concentration was found to be normally distributed, with a mean value,
* 10 grams/m and a standard deviation, a- 2 grams/m
Assume steady-state and a conservative pollutant.
a. What is the mean "flow of pollutant", QC, into the lake in grams/min? Show
calculations.
b. Since the standard deviation ef the concentration, C, is 2 grams/m, what is the
standard deviation of the "flow of pollutant", QC, in grams/min? Show calculations.
c. What is the probability that the concentration of pollutant, C, will be between 12
grams/m and 15 grams/m? Show calculations and indicate on normal distribution
curve,

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