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The light rod is pivoted at O and carries the 5- and 10-lb particles. If the rod is released from rest at ? = 60° and swings in the vertical plane, calculate
(a) the velocity v of the 5-lb particle just before it hits the spring in the dashed position and
(b) the maximum compression x of the spring. Assume that x is small so that the position of the rod when the spring is compressed is essentially horizontal.
Two pipes of identical length and material are connected in parallel. The diameter of one is twice the diameter of the other. What is the ratio of the flow rates (Q2/Q1) in the two pipes
a. Describe the modes of formation for the three basic categories of naturally occurring rocks. Name three rocks form each category. b. Explain how the formation process affects how rocks are described and classified in engineering terms.
Can this mixture exist in two phases at the same temperature but at a different pressure?
A water main springs a leak and the geyser is estimated to be 20 feet in height. It is also estimated that about 300 gallons per minute is leaking based on flow into gutter. About how big is the hole in the water pipe
A left-turn movement has a maximum arrival rate of 200 veh/h. The saturation flow of this movement is 1400 veh/h. For this approach, the yellow time is 4 seconds, all red time is 2 seconds and total lost time is 3 seconds.
A tensile-reinforced beam has b = 12 in. and d = 20 in. to the center of the bars, which are placed all in one row. If fy = 60,000 psi and fc' = 5000 psi,
A computer technician can handle on average 5 service calls per day. The cost of adding a technician (C1) is $200 per day and the estimated cost of waiting per incident (C2) is $250 per day.
Near the point (x, z) =(3,2) in a flow with a zero y-component (v=0), the velocity component are described by u =3x-3z, and w = 6-4z+ x. The velocities u and w are in m/s and are in the x- and z- directions, respectively.
In an undisturbed soil formation, it is known that the dry soil weight is 115pcf. The specific gravity of the soil particle is 2.75.a) What is the saturation wet unit weight of the soil b) What is the submerged weight of the soil
A city is considering a 3 stage membrane system to treat brackish groundwater at its water treatment plant, WTP (Qf=1000m^3/d, Cf=2000mg/L TDS). Each stage can perform 60 % water recovery (Qp/Cf) and 90% salt rejection (1-Cp/Cf)
Show that the ultimate load for a strip footing under long-term conditions using the two triangle failure surfaces
If = 300 N , determine the required minimum compression in the spring so that the wedge will not move to the right. Neglect the weight of A and B. The coefficient of static friction for all contacting surfaces is .2 Neglect friction at the rollers..
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