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a 2kg piston accelerates to 20m/s from rest. what constant gas pressure is required if the area is 10cm^2, the travel is 10cm and the outside pressure is 100Kpa
A sample of natural glacial till was taken from below the groundwater table. The water content was found to be 52%. Estimate the wet density,dry density,buoyant density,porosity,and void ratio. Clearly state any necessary assumptions.
Link ABrotates through a limited range of angle β, and its end Acauses the slotted link ACto rotate also. For the instant represented where β= 60 and = 0.6 rad/sconstant, determine the corresponding value of r r'.
An equal-tangent crest vertical curve connects a +3.2% and -1.1% grade. The PVI is at station 98+20. Due to drainage considerations, the highest point of the curve is at station 100+79.35.
compute the finals velocities v1' and v2' after collision of the two cylinders which slide on the smooth horizontals shaft. The cofficient of restitution is e= 0.6. m1 = 2 kg, v1= 7m/s and m2 = 3 kg , v2 = 5 m/s
A 100 gram piece of ice cooled at -20 degrees Celsius is placed in the calorimeter. What is the final temperature of the system, and what mass of ice and water remains
A car is traveling at 30 mph on a good, dry pavement at sea level. The front-wheel-drive car has a drag coefficient of 0.35, a frontal area of 30 ft2 and a weight of 2500 lbs. The wheelbase is 120 inches and the center of gravity is 20 inches from..
Given the stationing in meters as (4+56) for the PC of a horizontal curve of radius R=1200 meters and angle I=22°. The azimuth of the line PC to PI as AzPC-PI = 155° 30'. A point P is to be located on the curve at stationing of 7+00.
Person spining has his arms outward. The moment of inertia is 52kg*m^2 and ang. speed 3.80 revolutions/ second. if the persons arms are down. moment of inertia goes to 35kg*m^2. find the new angular speed
A stainless steel pipe (k= 17 W/m?C) is being used to convey heated oil. The inside surface temperature is 130?C. The pipe is 2 cm thick with an inside diameter of 8 cm. The pipe is insulated with 0.04 m thick insulation
What is the maximum population that can be served by a 900 mm diameter main sewer constructed on minimum grade. If sewage flow in the pipe never exceeds a depth of 600 mm, estimate the actual population contributing flow to the main.
Chromium contamination is a problem at a number of hazardous-waste sites. At one site local concentrations of chromium reached 60,000 mg chromium/kg soil and 19,000 mg/L chromium in the water.
A concrete (n=0.013) stormwater channel, 6-feet in diameter, has a bed slope of 0.01%. What is the uniform flow in cfs when the pipe is half full
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