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1.An entrepreneurial new civil engineering graduate started a lab for testing endocrine disrupting compounds.
The lab just broke even the first year, but in years 2 through 5, it made a profit of $97,000 each year. What is the present worth in year 0 of the profit at an interest rate of 10% per year?
2.Plot the relationship between the approach speed v and the length of the dilemma zone for the following data: a2 = 0.5g, ?2 = 1.0s,w = 65ft, L = 15ft, and ? = 4.5s (where a2 is the acceleration, ?2 is the perception reaction time, w isthe width of the intersection, L is the length of the vehicle and ? is the duration of the yellow phase of the traffic signal).
For an unknown alloy the stress at which plastic deformation begins is 400MPa and the modulus of elasticity is 120GPa. If the original specimen length is 76 mm
Water flows from a large open tank through a sharp edged entrance and into a galvanized iron pipe of a length 1.5 miles and diameter of 4 inches. The water exits the pipe as a free jet at a distance
How to detect eror in line of collimation and what does line of collimation means.
Two parallel plates are separate at a distance of 2mm by a fluid. If a shearing stress of 150 Pa is developed at the upper plate when it is pulled at a velocity of 1m/s. Determine the viscosity of the fluid.
Assuming a linear speed-density relationship, the mean free speed is observed to be 60 mph near zero density, and the corresponding jam density is 140 veh/mi.
If the maximum stress that the tank can sustain equals 22.857 ksi, determine the required thickness (to the nearest 1/4 inch). If the tank wall thickness is specified to be 2.25 inches.what is the maximum internal pressure
A person with a mass of 200kg wearing snow skis is gliding down a long slope at an angle of 20 degrees. Each ski is 200cm long and 5 cm wide. The pressure of the skis on the snow melts a thin layer of water so that a
what type of SO2 removal device before (in front of) or after (following) the particle collector would you use?
At the instant when theta=35 degrees the orizontal guide is given a constant upward velocity v0=2 m/s. For the instant calculate the force N exerted by the fixed circular slot and the force P exerted by the horizontal slot on the 0.5 kg pin A.
Knowing that the collar is releasted from rest at A, develop an equation to determine the velocity of the collar at point B for any given value of k (k-range is 0.1-2.0 lb/in)
A flow of 90 cfs is carried in a rectangular channel 10ft wide at a depth of 1.6 ft. If the channel is made of smooth concrete (n=0.016), find the slope necessary to sustain a uniform flow at this depth.
A pipe carrying oil of specific gravity (SG = 0.877) changes in size from 150 mm at section E to 450 mm at section R (E and R are arbitrary designations of the two points in the system). Section E is 3.66 m lower than R
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