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1.Why the highest head of the water in the excavation is mathematically guaranteed to occur on the edge of the excavation. explain in mathematical and/or physical.
2.Two forces are applied to the vertical post. Determine the force and couple at O equivalent to the two forces.
3.Head loss and sunshine striking a pipeline cause the temperature of the water flowing inside to rise by 2 degrees Celsius between two measuring points. Find the heat gain in J/N and cal/N.
Two identical pool balls of 57.15 mm diameter may move freely on a pool table. Ball B is at rest and ball A has an initial velocity v=v0i. (a) knowing that b=50 mm and e=0.7, determine the velocity of each ball after impact.
an observer has determined that the time headways between successive vechile on a section of the highway are exponentially distributed and that 65% of the headways btw vehicles are 9 seconds or greater.
What is the conversion rate for parts per million by volume (ppmv)conversion. How is this converted into atm, Pa, and torr?
Briefly describe the measures that should be considered for the control of corrosion of embedded steel in concrete.
Box 1 weighs 284.49N Box 2 weighs 421.83N. The angle between box 2 and the ramp is 37deg. Find the minimum angle for alpha that allows the boxes to remain stationary.
The wastewater treatment plant for Pine City discharges 1 × 105 m3/day of treated waste to the Pine River. Immediately upstream of the treatment plant, the Pine River has an ultimate CBOD of 2 mg/L and a flow of 9 × 105 m3/day.
a moisture content of 10.2 % and a specific gravity of solids of 2.65. Compute the unit weight, dry unit weight, degree of saturation, void ratio and porosity.
diameter, are connected by the gears shown. Knowing that G=11.2*10^6 psi, determine (a) the angle through which end A of shaft AB rotates, (b) the angle through which end E of shaft EF rotates.
Civil and Environmental Engineering Question, 1. How is the problem of technology choice related to process selection and product design?
The 24-in pipe leads from a reservoir (flush entrance), and the 18-in pipe discharges into the air at a point 15 ft lower than the reservoir water surface level. Assuming all changes in section to be abrupt
water with a static pressure of 1.96knm2 flows through an 800 mm diameter pipe. a pitot tube pressure gage in this pipe
Determine the force at the circular endcap and its location relative to the bottom of the pipe. If there is a hinge at the bottom, what external force would need to be applied to the top to prevent rotation
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