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When a pesticide comes into contact with skin, a certain percentage of it is absorbed. The percentage of the pesticide that will be absorbed during a given tie period can be modeled with a lognormal distribution. Assume that for a given pesticide, the amount that is absorbed (in percent) in a two-hour time peroid is log normally distributed with mu=1.5 and sigma=0.5.
1. Find the mean percentage absorbed.
2. Find the median percentage absorbed.
3. Find the probability that the percent absorbed is more than 10.
4. Find the probability that the percent absorbed is less than 5.
5. During the two hour period, an intermediate reading reveals that the percent absorbed is 3 percent. What is the probability that the amound absorbed at the end of the two hour period will be greater than 5 percent?
A nozzle that discharges a 4in water jet into the atmosphere is onthe right end of a 10in diameter hose. the water in the pipehas a velocity of 12fps and a gage pressure of 60psi. Find the magnitude and direction of the resultant axial force reaction..
Determine the total crop water requirement including the leaching ratio of a corn crop with a ECt of 1.7mmhos cm-1 if the ECiw of the irrigation water and precipitation is 5 and 0 mmhos cm-1 respectively
The reaction between 2-methyl-2-pentanol and HBr to yield 2-methyl-2-pentene is probably: A) an E1-type reaction involving the protonated alcohol as the substrate. B) an SN2-type reaction involving the protonated alcohol as the substrate.
A horizontal curve is to be designed for a two-lane road in mountainous terrain. The following data are known: intersection angle: 50 degrees, tangent length: 400 ft, station of PI: 2000+00, e: .08, fs:.16
The engineer in charge of this project investigated severla alternatives to cool the exhaust gas and has concluded that the two most practical solutions would be either the installation of a waste heat boiler or the installation of a spray injecti..
Write a MATLAB program that loads the sensor_new.dat file. The sensor readings were actually taken every second over a period from 0 to 19 seconds. Create a time vector going from 0 to 19 in 1 second increments.
Alternative R has a first cost of $100,000, annual M&O costs of $50,000, and a $20,000 salvage value after 5 years. Alternative S has a first cost of $175,000 and a $40,000 salvage value after 5 years
In this assignment you are a recent graduate and have been hired as an industrial engineer and your job is to set up the plant to produce a new product.
Help with a site plan - Design on paper to add some other things in it.
design a three story office buildingassume separate business functions on each floor only top floor allowed full
For a triangular channel of z=2 side slopes tha tcarries a discharge of 100 cfs at a depth of 5 ft, determine the channel slope S under the assumption that normal flow exists and that n equals 0.022.
If the Greenshields model describes the relationship between speed and density on the highway, the jam density of the highway is 112 veh/mi, and the mean free speed is 64.5 mph,
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