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An automobile that you are looking at purchasing has an advertised fuel mileage of 30 miles per gallon. You rent the car for a week and track your mileage to school and back home and get (miles/gallon):
26 mpg 25 mpg
24 mpg 28 mpg
20 mpg 30 mpg
25 mpg 26 mpg
27 mpg 33 mpg
What is the probability that if you purchase the car you will get the fuel mileage advertised or better (in %)?
Estimate the daily emissions of sulfur dioxide, nitrogen oxides as NO2, and particulate matter from an industrial steam-generating plant equipped with a dry-bottom pulvurized-coal firing system.
A circular hatch, 2-m in diameter has its top 10-feet under water ( fresh water s.g. = 1.0), and is hinged on the bottom, and held closed on the top with a single bolt. Perform a moment balance about the hinge to calculate the force that the bolt mus..
To float a 160 pound man using helium balloons (assume 0.52 cubic feet per inflated balloon). How many balloons would it take? Assume density of air is 1.29 kg/cubic meter and the density of helium is 0.179 kg/cubic meter.
A hi-vol clean filter weighs 18.00 g. After a 24 hour sampling period the filter is removed and weighs 18.65 g. The initial flow rate through the filter was 2.5 m3/min.
A thin-walled pipe, of diameter 4 in., is held stationary in a river flowing at 6 ft/s parallel to its axis. The pipe contains a sharp-edged orifice, of diameter 3 in., with a contraction coefficient of 0.60 based on the area.
Calculate the metric tons of gravel required to fill an excavated area 70 meters by 50 meters by 2 meters deep if the gravel has a density of 1890 kg/(m^3).
A rod of steel is 20 m long at a temperature of 200C. find the free expansion of the rod when the temperature is raised to 650C. Find the temperature stress produced
The fountain shown is designed to provide a stream of water that rises h=10ft to h=20 ft above the nozzle exit in a periodic fashion. To do this the water from the pool enters a pimp
Both streams have a ?nal speed V = 18 ft/s. Disregarding gravitational e?ects, determine the x- and z-components of the force required to hold the splitter plate in place against the water force.
An L2 steel strap having a thickness of 0.125 in. and a widthof 2 in. is bent into a circular arc of radius 600 in. Determine the maximum bending stress in the strap.
A 48-in water main carries 79 cfs and branches into two pipes at point A. The branching pipes are 36 and 20 in. in diameter and 2800 and 5000 ft long, respectively. These pipes rejoin at point B and again form a single 48-in.
A 2000-lb wheel load is to be supported by aggregate over soil with a maximum bearing pressure of 1000 lb/sqft. What depth of aggregate is needed if the angle theta is 40 degrees
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