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Consider two identical 50-kg women, Candy and Wendy, who are doing identical things and eating identical food except that Candy eats her baked potato with four teaspoons of butter while Wendy eats hers plain every evening. Determine the difference in the weights of Candy and Wendy after one year
A -2.8% grade line meets a +3.6% grade line at station 125+00 at elevation of 1631.04. Assuming a length of curve is 650feet, compute the elevation and station of the BVC (PVC) and the EVC (PVT).
Three streams of polluted air are combined prior to treatment in an electrostatic precipitator (ESP). The flow and particulate concentration of each stream are 600 cfm at150 mg/m^3, 700 cfm at 200 mg/m^3, and 500 cfm at 1000 mg/m^3.
When a horizontal laminar flow occurs between two parallel plates of infinite extent 0.3 m apart, the velocity at the midpoint between the plates is 2.7 m/s. Calculate the flow rate through a cross section 0.9 m wide.
During a BOD test, 2 mL of waste water having a DO of 0 was mixed with 298 mL of dilution water having a DO of 8.9 mg/L. After 5 days and 20 days, it was noted that the DO of the test bottle was 4.0 and 2.5 respectively
A pneumatic-tired tractor with a 354 - hp engine has a maximum speed of 3.6 mph in 1st gear. Determine the max. rimpull of the tractor in each gear if the engine effieicency is 91%.
if the aircraft is encountering a steady side wind of speed vw=10 mi/hr , at what angle (a) should the pilot direct the aircraft so that the absolute velocity is parallel to the runway
The motion of a particle is defined as x=t^2-8t+7 and y=0.5t^2+2t+4, where x and y are in meters and t is in seconds. Determine the magnitude of the smallest velocity reached by the particle, and the time, position, and direction of that velocity.
a two stage high rate trickling plant is to treat a municipal wastewater having a flow of 2.0mgd. pertinent data: influent BOD5 = 200mg/l, BOD5 removal by primary clarifier = 33%, filter bed depth = 5 to 7ft
The forces F1, F2, and F3, all of which act on point A of the bracket, arespecified in three different ways. Determine the x and y scalar components of each of the three forces.
Your engineering consulting firm has been asked to determine the specific weight of an unknown material. You decide to use the concept of buoyancy to figure this out. So you weigh the material in both air and water.
A space is at a temperature of 75 F, and the relative humidity is 45 percent. find the partial pressures of the air and water vapor
A culvert needs to convey 475 CFS. If five 48 inch RCPs are selected with a rounded end with a headwall (c = 0.5) and the invert of the channel is installed at an elevation of 843 feet, what is the surface water elevation ponding behind the culver..
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