Calculate work and power required for process
A person weighing 800 lbf climbs a flight of stairs that extends a vertical distance of 300ft. Calculate the work and power required for this process if it requires 3 min, 5 min, and 10 min.
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An insurance company receives an average of 100 claims per month and each claim results in a payment (independently of the others) with probability 0.95. Let X be the number of payments and Y the number of claims submitted.
Assume that adults have IQ scores that are normally distributed with a mean of u= 100 and a standard deviation = 20. Find the probablility that a randomly selected adult has an IQ less than 140.
Sketch and name the particular type of backwater curve occurring in this case. Estimate the distance along the channel over which the fluid depth changes from 0.4m to 0.2
An infinitely sharp zone of solute is placed at the center of acolumn at time t=0. After diffusion for time t1, the standarddeviation of the Gaussian band is 1.0mm. After 20 minutesmore, at time t2, the standard deviation is 2.0mm.
Consider the following joint probability density function of the random variables x and y: f(x,y)= 3x-y/9 for 1<x<3 and 1<y<2
A severe thunderstorm dumped 2.5 in of rain in 30 min on a town of area 34 km^2. What mass of water (in kg) fell on the town? One cubic meter of water has a mass of 10^3 kg.
When reducing a ketone to an alcohol in a lab, why do we have toadd sodium borohydride little by little under ice water? Also, whenoxidizing an alcohol to ketone, why do we add glacial acetic acid before adding NAOCL?
How do you find the magnitude of individual vectors when you have the magnitude of the resultant vector. After finding the i and j values of each vector and you have xa + xb = 180N.
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