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A linear spring-mass oscillator has a viscous damping factor ζ = 0.2 and an undamped natural frequency Fn = 6Hz. By referring to Fig 8/11 estimate the range of frequencies ƒ of the periodic applied force for which the amplitude of the oscillator will not exceed twice the static deflection which would be caused by applying a static force equal in magnitude to that of the periodic force. Check your estimate by applying Eq. 8/23Fig. 8/11.
Three reservoirs are connected by three pipes with hA = 100 f t, hB = 20 f t, hC = 0 f t, l1 = 1000 f t, l2 = 500 f t, l3 = 400 f t and D1 = D2 = D3 = 1 f t. Determine flow rate into or out of each reservoir if friction in each pipe is 0.02.
Estimate daily evaporation from a lake (cm/day) using Penman's (combined) formula, given the following information: average air temperature is 28 oC, average water temperature is 15 oC, average wind speed at 8m height is 20 Km/hr
Generate an Excel Spreadsheet with a detailed concrete takeoff of the Hunter Nissan Project. Include a worksheet for the continuous footing for the exterior portions of the building;
A 3-point bending test is performed on a 10 mm diameter rod of Silicon Carbide. The distance between the supports is one foot. If the load at fracture is 10,000N, what is the flexural strength of the rod
The brush is immersed in the first volume and agitated until equilibrium is established, removed and the exercise is repeated with the second volume. Assume that the solvent remaining in the brush after it is removed from the first batch is insign..
A trapezoidal canal with a bottom width of 1.5m, a side slope Z=1, has a longitudinal slope of 0.4% and n=0.025. If the water depth in section 1 is 1.52 m and in section
Soil is excavated from a borrow to construct an embankment with a net volume of 50,000 cy. This is performed by compacting 12-in layers of the soil to a dry weight of 110 pcf at a moisture content of 18%.
the 3 kg block is released from rest at A and slides down the smooth parabolic surface. determine the maximum compression of the spring
The coefficient of rolling resistance can be taken to be a constant for all speeds, equal to 0.008. If the cyclist is coasting down a 6% grade, what is the maximum speed attained
You will then compare and contrast your assigned utopia with the series of seminal utopian ideas that have been introduced in class and in the assigned readings.
The rod is made of a-36 steel and has a diameter of .25 in. if the springs are compressed 0.5 in when the temperature of the rod is T=40F, determine the force in the rod when its temperature is T=160 F. K=1000lb/in. and length is 4 ft long.
Calculate the super-elevation required for a horizontal curve on a two-lane, two- way highway with 60 mph design speed, and a 1200 ft. radius curve. What is the required length of the spiral curve?
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