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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.
Determine the minimum length of a crest vertical curve if the grades are +4% and -2%, Design speed is 70 mi/h
A long trough is supported by a hinge along its lower edge and a series of horizontal cables attached to its upper edge. Determine the tension in each of the cables, at a time when the trough is full of water.
1. What does the acronym ANSI stand for Stands for American National Standards Institute 2. What is the purpose of a titleblock The purpose of a title block is for give us enough information about the project.
Determine the normal and critical depth for a 4-m-wide rectangular channel with a discharge of 100 m3/sec. The cannel is made of concrete and the slope is 1.0 percent. Also determine the flow classification (critical, subcritical or supercritical)
The selection of the most appropriate procurement route is important to the successful implementation of a construction project. a) Name and briefly explain the main procurement methods used in the construction industry.
A 30-liter volume of gas at 25 degrees C contains 12 g of methane (CH4), 1 g of nitrogen (N2), and 15 g of carbon dioxide (CO2). Calculate (a) the moles of each gas present, (b) the partial pressure exerted by each gas, and (c) the total pressure ..
Three parallel line loads of 500kN/m are applied at ground level in a straight line 4.0m apart. Determine the increase in vertical stress at 2.0m below ground level beneath the middle load.
A crate has a weight of 50 lb and is acted upon by a force having a variable magnitude of P=20t, where p is in pound and t is in seconds. compute the crates velocity two seconds after P has been applied. The crates initial velocity is 3 ft/s down the..
identify the conditions under which that system is preferable over the other two. In what situations would you not recommend a heat pump heating system?
Binder Classification (Grading) What is the best possible PG grade of the asphalt whose results are shown in Table 4 below? Use Table 9.3 from M&Z at end of assignment to help.
Set up a table showing curve elevations at the PVC, at the PVT, and at the half-station points along the curve. Compute the station and elevation of the curve turning point.
Can sound waves travel in a vacuum?
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