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1.The saturated unit weight of a soil is 128 lb/ft^3 Given specific gravity=2.74 determine the dry unit weight?
2.A tank of Compressed oxygen for flame cutting is to contain 10 kg of oxygen at a preassure of 14 MPA ( the temperature is 20 degrees Celsius). How large must be the tank volume? What is the diameter of a sphere with this volume?
3.Neon gas at 50 degrees C in a vertical cylinder of diameter 150 mm has a 6 kg frictionless piston mounted. The outside pressure is 98kPa and the neon volume is 4000cm^3. Find the mass of neon.
4.If you have 1 liter of ammonia at room temperature and pressure (20 Celsius, 100kPa). How much mass is that?
1. the maximum eight-hour average concentration of carbon monoxide co in an urban area is measured to be 15 ppm. the
Consider a 1000-W iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-T6 (density = 2770 kg/m^3 and c(p)=875 J/kg C). The base plate has a surface area of 0.03 m^2.
A steel cylinder tank is 10 ft in diameter, 15 ft high, and is filled with a brine solution. Brine weighs 10 lbf/gal. The thickness of the steel shell is 1/2 in. The cylinder sits on a concrete pad 12ft x 12ft .
Granny viola has been saving money in the Bread and Butter mutual fund for 15 years . She has been a steady depositor over those years and has a pattern of putting $100 into the account every 3 months.
For unidirectional carbon/epoxy tape at a 60% fiber volume fraction, calculate E11 and E22. Given Ef= 211 GPa and Em =10 GPa. Calculate the fiber weight fraction. Given pf=1.95 g/cm3 and pm =1.3 g/cm3.
Given a horizontal curve of radius 1400 feet, a central angle= 46 degrees 21 minutes located at PI 50 plus or minus 00.00 on the centerline of a two-lane road with 12-foot wide lanes,
A 1m diameter pipe bend is carrying water with a steady flow rate of 2 m3/s. The bend has an angle of 90o and lies in a horizontal plane. The volume of water in the bend is 1.5 m3 and the empty weight of the bend is 4 kN.
1.at what temperature does the first solid phase form?2.what is the composition of this solid phase?3.at what
A runs slope a distance of 156.777 m from one point to another point at a rate of +1.5%. What is the corresponding horizontal distance between the points?
determine the dimensions of an ideal circular settling tank that can remove 0.01-in diameter particles with a specific gravity of 1.01. Use a detention time of 1.5 hours, flowrate= 4ft^3/sec, the specific weight of water=62.4 lb/ft^3
A uniform crate weighing 15.0 kN is lifted by a sling, ABC, a small pulley and cable BD. If the tension in the sling is limited to 9.0 kN, determine the minimum length of the sling. Neglect the radius of the pulley.
uniform rod makes with the vertical during the roll, and (b) the speed of the roller after it moves 4 ft., starting from rest. The roller rolls without slipping, and the rod hangs vertically (theta = 0) when the system is at rest.
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