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1.Consider a diver weighing 200 lb at the end of a diving board that cantilevers out over 3 ft. The diver oscillates at a frequency of 2 Hz. What is the flexural rigidity EI of the diving board?
2.Given a 22.414 liter volume of air at STP containg: 21.224kPa oxygen, 79.119 kPa nitrrogen, 0.946kPa argon,and 0.036 k carbondioxide. Find the gram molecular weight of the air.
What does under-reinforced mean Which is desirable and why How would your Moment-Curvature plot be affected if the amount of tension steel was doubled How would your Moment-Curvature plot from part a be affected if compression steel was added to the..
determine the power that must be supplied to the motor at this instant. The motor has an efficiency of 76 %. Neglect the mass of the pulleys and cables.
The average flow rate is 0.050 m3/s.If the BOD5 removal efficiency is 30%, How many kg of BOD5 are removed in the primary settling tank each day
use zero through forth order taylor series expansions to predict f(2.5) for f(x) = ln x using a base point at x=1. compute the true percent relative error for each approximation. discuss the meaning of the results.
A temporary diversion has been constructed on a highway of +4 percent gradient due to major repairs that are being undertaken on a bridge. The maximum speed allowed on the diversion is 10 mph.
The perpendicular distance between two parallel tangents of a reversed curve is 20m. The azimuth of the back tangents of the curve is 270 00 and the azimuth of the common tangent is 310.
The magitude of the power input to the compressor is 7,5kW and there is heat tranfser from the compressor to the surroundings at a rate of 0.15kW. Kinetic and potential energy are negligible.
Air at 70oF and atmospheric pressure flows with a velocity of 22 ft/s through a 3-in-diameter pipe (e = 0.00015 in). Find the friction head loss in 75 ft of pipe.
A child at a park finds a ball floating in a freshwater pond (temperature 30 degree C). The child swims to the ball and, with an incredible amount of dexterity, balances himself on the ball
A confined aquifer 30.0m thick has been pumped from a fully penetrating well at a steady rate of 5,000 m^3/day for a long time. Drawdown at an observation well 15m from the pumped well is 3.0 m and a drawdown
Three point loads 10,000, 7500 and 9000 kN act in line 5m apart near the surface of a soil mass. Calculate the vertical stress at a depth of 4m vertically below the centre (7500kN) load.
find an expression for the diameter, D, of the droplet, in terms of the specific weight and surface tension, assuming the contact angle just before seperating is zero.
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