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Base course aggregate has a target dry density of 119.7 lb/cu ft in place. It will be laid down and compacted in a rectangular street repair area of 2000 ft*48ft*6in. the aggregate in the stockpile contains 3.1 percent moisture. If the required compaction is 95 percent of the target, how many tons of aggregate will be needed?
Due to atmosphere drag, the deceleration equation is 60a=588.6-30v^2 in m/s^2. Find the velocity at which he lands on the ground. This velocity is referred to as terminal velocity, which is found by letting the distance of the fall (y) go to infin..
What are the velocities of both just before impact and just after impact. There is a distance of 5m between the vehicles prior to the winch being turned on.
A new concrete mix is being designed to provide adequate compressive strength for concrete blocks. The specification for a particular application calls for the blocks to have a mean compressive strength greater than 1350 kPa.
Calculate the vapor pressure, air pressure, relative humidity, and air density at elevation 1500 m if air temperature is 25 degrees C and dew point temperature is 20 degrees C and the lapse rate is 9 degrees C/km
The cash flow of alternatives J and K is shown below. If the interest rate is 10% per year, which alternative should be selected. Perform a Present Worth analysis.
An 8x12 column of No. 1 Spruce-Pine-Fir(South) has an unbraced length for buckling about the strong x axis of 16 feet and an unbraced length for buckling about the weak y axis of 8 ft. Cm = 1.0 and Ct = 1.0
A-Olympus Mons, a 69,000-foot-tall mountain on Mars, is the largest volcano in the solar system. Its circumference at the base is large enough to cover almost the entire state of Colorado.
Given a sand with a moisture content of 10%, how much water needs to be added to bring the sand to a moisture content of 20%
Soil falls from a conveyor belt into a cone shaped pile at a rate of 1000lb/min. The bulk density of the soil is 110lb/ft^3. The height of the pile is equal to the base diameter.
Determine the minimum horizontal force necessary for 200 lb man to scale crevice (using his feet and back). The coefficient of static friction between his shoes and his back against the wall is 0.4.
Two parcels of air are mixed. The given properties of the two parcels and the final mixed parcel are as follows: parcel (1): volume = 1 Liter, Temperature = 10 Celsius, pressure = 1 atm, relative humidity = 50%, parcel (2): volume 1 Liter, Tempera..
The inlet of loe pressure turbine is 500Kpa and 500°C. Condenser operates at 10 Kpa. Determine the mass flowrate through boiler needed to produce 5000KW of power.
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