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Determine the normalstress in a basketball of 12 inches diameter and 0.1 inch wall thickness which has been inflated to a gage pressure of 15psi.
for sizing the syst em, the mean cell residence time is selected to be 5 days. the reactoer kinetic constants are u max= 2.4 d^-1 (1/day), Ks=75 mg/L as COD, Y=0.4 VSS/g COD and Kd=0.096 d^-1(1/day)
how many students have heights, (a) Greater than 72 inches (b) Less than or equal to 64 inches (c) Between 65 and 71 inches inclusive (d) equal to 68 inches * Assume the measurements to be recorded to the nearest inch.
Vehicles begin to arrive at a toll booth at eight vehicles per minute from 9 A.M. to 10 A.M. The booth opens at 9:10 A.M. and services at a rate of ten vehicles per minute until 9:40 A.M. From 9:40 A.M. until 10 A.M.
The two disks each have a mass of 25kg and are attached at their centers by an elastic cord that has a stiffness of k = 1.6kN/m . Determine the stretch of the cord when the system is in equilibrium
Determine the carburizing time necessary to achieve a carbon concentration of 0.35 wt% at a position 2 mm into an iron-carbon alloy that initially contains 0.10 wt% C.
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.
A minimum contact time of 30 min is required to reduce the pathogen concentration from 100 pathogens/L to below 1 pathogen/L through a first- order decay process. You plan on treating water at a rate of 1,000 gal/min.
An electric water heater held at 140 °F is kept in a 70 °F room. When purchased, its insulation is equivalent to R-5. An owner puts a 25-ft2 blanket on the water heater, raising its total R value to 15
A real estate broker charges a fixed fee of $50 plus a 6% commission on the landowner's profit. If this is uniformly distributed between 0$ and 2000$, find the probability distribution of the brokers total fees.
Air at 400 kPa, 270 Kelvin, enters a well-insulated, horizontal pipe having a diameter of 2cm and exits at 90kPa, 200 Kelvin. Ideal gas model for air, determine at a steady state The inlet and exit velocities, in m/s
Annual rare based on amount of products which can ordinarily be shipped each year as a function of the amount of vehicles or service purchased with the first cost and the M&O costs.
Design a one way slab to support a uniform live load of 300 psf. The beam is simply supported with a span of 20 ft. Use a reinforcement ration ( Ps) of 0.008 Use f'c=3000 psi and fy=60000 psi.
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