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1.A horizontal force P = 100 N is just sufficient to hold the cratefrom sliding down the plane, and P = 350 N is required to just pushthe crate up the plane. What is the mass?
2.It is desired to obtain dynamic similarity between 3 cfs of water(ρ = 1.94 slug/ft3, μ= 2.735 x 105Ibs/ft2) flowing in a pipe and oil 9s.g = 0.91, μ=12 x 105 ibs/ft2) flowing in a 12in diameter pipe at a velocity of 25 ft/s at 90 deg F. What size of pipe isnecessary for the water?
Three prismatic bars, two of material A and one of material B, transmit a tensile load P. The two outer bars (material A) are identical. The cross-sectional area of the middle bar (material B) is 50% larger than the cross-sectional area of one of ..
What criteria are used in the selection of personnel for the demonstration of maintenance tasks? Define the criteria for the selection of test and support equipment.
Determine the unstretched length of spring AC if a force P = 110 lb causes the angle theta = 60^circ for equilibrium. Cord AB is 2 {rm ft} long. Take k = 50;{rm lb/ft}
Assume the components act independently and that they are equivalent in the sense that all 3 of them have an 85% success rate. Consider the random variable X as the number of components out of 3 that fail.
The BOD5 of the influent wastewater is 150 mg/L and the first-order reaction rate for the degradation of BOD5 is 0.6/hr at 20°C. If the required effluent BOD5 is 20mg/L
Demand for a particular product is normally distributed with a mean of 100 units and a standard deviation of 20 per period. if there are 120 units in inventory at the beginning of this period
If the coefficient of kinetic friction between the 12.5 mm diameter axles and the wheels is mu_k = .3, determine the radius of the wheels. neglect rolling resistance of the wheels on the surface.
A particle travels along a straight line with a constant acceleration. When s=4ft, v=3ft/s and when s=10ft, v=8ft/s. Determine the velocity as a function of position.
If the queue clears exactly at the end of the effective green D/D/1 queuing applies, determine the total vehicle delay in the cycle (in veh-sec) .
a wall 8 ft high is 3/3/8 ft. from a house. find the shortest ladder which will reach from the ground house when leaning to the wall.
A closed cylindrical tank filled with water has a hemispherical dome and is connected to an inverted piping system. The liquid in the top part of the piping system has a specific gravity of 0.68.
Based on information provided in the survey bulletins and knowing that the landfill is located in the municipality of Duque de Caxias, on the shore of Guanabara Bay opposite Governor's Island (Galeao Airport)
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