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Communication satellites are placed in a geosynchronous orbit i.e in a circular orbit such that they complete one full revolution about the earth in one sideral day (23.934h), and thus appear stationary with respect to the ground.
(a) the altitude of these satellites above the surface of the earth.
(b) the velocity with which they describe their orbit in SI & English unit.
A laboratory consolidation test was performed on a clayey soil specimen, which was drained on both top and bottom. The time for 50% consolidation was 6.2 minutes, and the specimen's thickness at 50% consolidation was 0.740 in.
The car weights 2450 lb, the mechanical efficiency of the drivetrain is 90%, and the wheel radius is 14 inches. The base engine develops 200 ft-lb of torque, and a modified version of the engine develops 240 ft-lb of torque.
Water flows in a circular pipe of diameter D at a depth y (
commercial management in civil engineering 1-critically analyse the use of project related commercial risk registers
during construction of the surface layer of asphalt pavement, two samples where taken everyday to measure the asphalt content in the mix to ensure that it is within the specification limits. the target value was set at 5.5 percent with a tolerance..
Give the phase and the missing property of P, T, v and x. Put the values in a table withcolumns P, T, v, and x.
A haul fleet of trucks having a heaped capacity of 15 cy. is to be loaded by a hydraulic backhoe excavator (CT=.48 min.) with a 3 1/2 cy. heaped capacity. Assume the material is a wet loam that weighs 3380 lb/cy in the bank state
A permeameter with a cross-sectional area of 400 cm2 contains 3 soils in 50 cm thick layers. A total head difference of 2.0 metres results in a flow rate of 100 cm3/s. The head loss through the top layer of soil is 50 cm.
Water leaves a reservoir at 0.05 m^3/s through a 200-mm riveted steel pipeline that protrudes into the reservoir and then immediately turns a 90º bend with a local (minor) loss coefficient equal to 0.3.
Determine the design hourly volume for the road below, recommend the K factor first.
Plan your field geotechnical instrumentation scheme. Plot your instrumentation systems on a cross section of your embankment and fully justify your answer. Also remember that you need to obtain the maximum data with the minimum cost?
A well of 0.4 m diameter fully penetrates a 25 m thick confined aquifer of coefficient of permeability of 12m/day. The well is located in the center of a circular island of radius 1 km.
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