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A 200lb homogeneous gate of 10ft width and 5ft length is hinged at point A and held in place by 12ft long brace as shown in fig 2.69 as the bottom of the brace is moved to the right the water level remains at the top of the gate. the line of action of the force that the brace exerts on the gate is along the brace.
(a) plot the magnitude of the force exerted on the gate by the brace as a function of the angle of the gate, theta for 0<= theta<= 90
(b) repeat the calculation for the case in which the weight of the gate is negligible. comment on the results as theta->0
determine the location of the center of gravity of the cast aluminum block
determine the transformed moment of inertia for the beam using steel as the reference material. Express your answer in in^4 to the nearest 0.1 in^4.
The initial velocity of a 15-lb block is given as mv1=15i+15j (ft/s). A force defined by F=250i-250tj (lb) acts on the particle from time t=0 to time t=0.3 s for a total duration of 0.3 s.
Identical bricks 0.1m wide, and weighting 2kg are placed on a plate (assume the plate has neligible weight). Calculate the total weight (and force F required to balance the plate).
A traffic signal control is being designed for a four-leg intersection on a divided highway with the characteristics shown in the table below. Determine an appropriate length of the yellow interval for each approach and how you will provide it.
A fan blade, initially at rest, rotates with a constant rotational acceleration of 0.9rad/s^2. What is its rotational velocity at the instant it goes through an rotational displacement of 5 radians
vehicle A enters the interstate and travel at 60 mph for 1/2 hour, stops for 30 mins then continues at 70 mph. If a vehicle B enters the interstate at the same location as A,
Two particles start from the same point along the same straight line and at the same instant. The first particle travels with a constant velocity v and the second with a constant acceleration.
The initial investment is $12,000 , there is no annual maintenance cost for the first 3 years , however , it will be $2,000 in each of years four and five , and then $4,500 in the sixth year and increasing by $2,500 each year thereafter .
Compute points on the velocity profile from the pipe wall to the centerline of a 3/4-in Type K copper tube if the volume flow rate of water at 60 degrees F is .50 gal/min.
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.
1. In which circumstance are multiple copies of the same unicast frame likely to be transmitted in a switched LAN. 2.If you want to disable STP on a port connected to a server, which command would you use
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