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If the driving frequency for the system of Prob.8/47 is ω = 6 red/sec. determine the required value of the damping coefficient if the steady-state amplitude is not to exceed 3 in.
Prob. 47
The 64.4-lb cart is acted upon by the harmonic force shown in the figure. If c = 0 determine the range of the driving frequency ω for which the magnitude of the steady-state response is less than 3 in.
Estimate the effective friction angle for the sand (assume c' = 0). Calculate the sand's shear strength (τf) on a horizontal plane at depths of the 20 ft and 50 ft.
Discharge from an orifice of 75mm diameter is 0.02 m^3/s under a constant head of 3 m. An external mouthpiece of the same diameter is installed that raises the coefficient of contraction from 0.63 to 1.0.
You are assined the task of process design for a fixed-bed carbon adsorber system. You are given the following data: the inlet airstream flows at 5000 acfm (at 95 degrees F and 1 atm) and contains .2% n-pentane by volume; the proper operating carbon ..
a pipeline terminates in a nozzle of outlet diameter 0.15 m. the free jet from the nozzle is deflected through
A 23-lb crate is pushed by a force F, which has the magnitude that varies as shown on the graph. If the crate is originally at rest and it takes 3 seconds after applying the force to hit the bumper
At a temperature of 9°C, a 2-mm gap exists between two polymer bars and a rigid support. Bars (1) and (2) have coefficients of thermal expansion of t1 = 102 x 10-6 /°C and t2 = 66 x 10-6/°C, respectively.
When using an automatic level and rod to conduct differential leveling for construction grade control of a concrete wall, the first necessary step following set up of the level is to:
The stream hts a stationary splitter, such that half of the flow is diverted upward at 45o. and the other half is directed downward, and both streams have a final speed of 18ft/s.
Determine the centroid for the region bounded by the x-axis, the curve y=x^3, and the line x=3
Using the central difference method and a time step of ?t = 0.02 seconds, find the displacement of the water tower at t = 0.02 and 0.04 seconds.
Block one has a mass of 1.5kg. Block two has a mass of 3.0kg. Treatthe pulleys as hoops. The radius of pulley one is 8.70m. The massof pulley one is 4.5kg.
A rectangular steel plate with thickness t=0.625 inches is subjected to normal stresses sigma x and sigma y.The strain in the x direction is known to be 0.00065 and the strain in the y direction is known to be 0.0004.
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