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While scrambling directly toward the sideline, the football quarterback Q throws a pass toward the stationary receiver R. At what speed should the quarterback run if the direction of the velocity of the ball relative to the quarterback is to be directly down the field as indicated? The speed of the ball relative to the quarterback is 60 ft/sec. What is the absolute speed of the ball? Treat the problem as two-dimensional.
Describe the reason for wanting the pore pressure ratio, ru and the pore pressure coefficients A and B - Describe three methods of obtaining pore pressure values.
a particle p moves along the spiral path r=(10/theta)ft, where theta is in radians. If it maintains a constant speed v=20 ft/sec, determine Vr and V Theta as functions of theta and evaluate each at theta =1 rad
Crude oil is at 50 degrees f (absolute viscosity=2.8*10^-4 lbf*s/ft^2) is flowing through a 24 inch diameter pipe. A pitot-static tube is used to measure the velocity at the center of the pipe
The forward direction is given by the alphabeteical order of the station names. Each angle is measured clockwise from the back direction to the forward direction so that they are on the left of the traverse looking forward.
If you have 10 kips acting downward on a foundation and footing, 4 feet long, with uniformly distributed load acting up ward of 2.5 k/ft (soil) also 4 ft long. what are the reactions, shear forces, and bending moments at the tree critical points?
A lake with a surface area of 525 acres was monitered over a period of time. During a 1 month period the inflow was 30 cfs, the outflow was 27 cfs, and a 1.5 in. seepage loss was measured.
A rotating shaft with an applied torque of 400 Newton-meters is held in place (stopped) by a shaft key. The diameter of the shaft is 15 centimeters. The shaft key has a length of 20 cm, and is square, with its width and height being 5 cm.
Force P is directed from point A(5,10,3) towards point B(1,-2,5) and has a magnitude of 15N. Vector Q=6i+2j-5k. When finding the projection of P onto Q what do you do with the 15N?
A man having a weight of 167lbattempts to hold himself using one of the two methods. Determine the total force he must exert on bar AB in each case and the normal reaction he exerts on the platform at C.
Determine the mole fraction of argon that ionizes according to the reaction Ar ? Ar+ + e -at 10,000 K and 0.35 atm (KP = 0.00042 for this reaction).
Route a trianglular hydrograph through a 100 foot wide rectangular channel with a bed slope of 0.015 and a Mannings n of 0.035. Take a distance between cross-sections of 3000 ft.
Repeat LEM(Limit Equilibrium Method) analysis in clay (undrained) using a circular failure surface, with the center of the circle a distance h above the edge of the footing. What ratio of h/B gives the minimum value of Nc
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