A vertical curve crosses an 8-ft diameter pipe at right angles. The pipe centerline is located at 116 85 and its centerline is at elevation 1021.50 ft. The PVT of the vertical curve is at 120 00 and elevation 1100 ft. The vertical curve is equal tangent, 900 ft long, and connects an initial grade of 3% with a final grade of -2%. Determine the depth below the roadway surface of the top of the pipe. What is the maximum design speed for this road

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.