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A 68 kg woman is planning to bicycle for an hour. If she is to meet her entire energy needs while bicycling by eating 30 g chocolate candy bars, determine how many candy bars she needs to take with her. Assume that an average 68 kg adult consumes 639 Calories/hour while bicycling, and the energy content of a 20 g chocolate candy bar is 105 Calories
Calculate the length of 10 equal-sized aeration basins for secondary treatment of a wastewater flow of 10 MGD with 20,000 lb of BOD per day for a conventional activated sludge process with a maximum loading of 40 lb BOD/ 1000 ft3*d.
Assume a time to peak of 15 minutes and the unit peak discharge is 7.0 cfs/in, using the Gamma Function Unit Hydrograph what is the unit discharge at 20 minutes
A runs slope a distance of 156.777 m from one point to another point at a rate of +1.5%. What is the corresponding horizontal distance between the points?
THE WATER TABLE OF A SATURATED , UNCONFINED AQUIFER COINCIDES WITH THE LAND SURFACE. THE AQUIFER IS 52 FT THICK AND THE MATERIAL HAS A UNIT WET WEIGHT OF 135 LB/FT^3.
If friction between the cars and the rails is neglected, what were the magnitude and the direction of the velecity of the cars after the collision?
Why is it necessary to require such conditions-sand cement ratio, w/c ratio and type of sand. A graded sand is specified for use in the mortar cube test. What would be the likely results if a one-sized sand was used instead of a graded sand.
Use the Bernoulli equation to describe how this manometer can be used to measure the flow rate through the meter.
A reservoir has a capacity of 2.75 million acre-ft. How many years would this supply a city of 100,000 people if evaporation is neglected. Assume a use rate of 180 gpcd.
For load combination 1.2D + 1.6L, determine the maximum negative moment in each span and maximum negative moment at each support. remember that live loads shall be placed so as to cause the greatest effect.
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.
Determine the required height h of the roller coaster so that when it is essentially at rest at the crest of the hill it will reach a speed v= 100km/hr when it comes to the bottom.
How does aggregate size influence the coefficient of permeability of concrete? List other factors that determine the permeability of concrete in a structure.
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