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What would the B/C ratio be if the light poles were twice as far apart as assumed above?2. What is the ratio of night to day accidents for fatalities?3. What would the B/C ratio be if the installation cost were only $2500 per pole?4. How many accidents would be prevented on the unlighted portion of freeway if it were lighted? Consider the property damage cate- gory only.5. Using only the category of property damage, what would the lighted night-to-day accident ratio have to be for the lighting to be economi- cally justified?
A body slides down a frictionless plane and during the third second after starting from rest if it travels 20.4m. What is the angle of inclination of the plane?
A consolidated-drained triaxial shear test on a normally consolidated clay yielded a drained friction angle of 28 degrees. If the confining pressure during the test was 15 psi, what was the major principal stress at failure.
In using the Darcy-Weisbach equation for flow in a pressure conduit, what percentage error is introduced in Q when f is misjudged by 20 percent?
Determine the required pumping rate. the aquifer has T= 1600 m 2 /day and the wells each have radius of influence of 600m.
A tank is filled with oil (specific gravity 0.8) and water to a depth of 10 meter and 6 meter respectively. Find the resultant force from all fluids acting on the gate of 1.8 meter by 9 meter.
(a) Use differentiation to find a general expression for the rocket's velocity as a function of time, (b) When is the velocity zero?
A concrete box girder bridge has the rectangular x-section. The box is prismatic and considered thin-walled. It span is L=48m and simply supported at points A,B,C and D. The supports are assume to be able to transfer tensile forces.
A soil borrow material in its natural state in the ground has a unit weight of 118pcf. Its natural water content is 7%. What is the dry unit weight of this material?
Name three types of metamorphic foliations, and draw a small sketch that shows a situation where a metamorphic foliation could cause problems in an excavation.
The base engine develops 200 ft-lb of torque, and a modified version of the engine develops 240 ft-lb of torque. If the overall gear reduction ratio is 8 to 1, what is the maximum acceleration from rest (in ft/sec^2) for:
what is the rate of evapouration of water from a reservoir with air temp at 20c and the surface of reservoir is 3000m2.
Determine the maximum and minimum stress intensities in the section.
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