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A point charge of -2.00μC is locatedin the center of a spherical cavity of radius 6.51cm inside aninsulating spherical charged solid. The charge density in the solid7.34*10^-4 C/m^3. Calculate the magnitude of the electric field inside the solid at a distance of 9.5cm from the center of the cavity.
Determine the volume of three identical activated sludge tanks following primary clarification to aerate 36,000 m cubed/d with a BOD concentration of 180 mg/l at a BOD loading of 560 g/m cubed*d.
The area shown is revolved about the x axis to form a homogeneous solid of revolution of mass m. Using direct integration, express the mass moment of inertia of the solid with respect to the x axis in terms of m and h
How many 34-inch diameter rivets are required to transmit 55,000 lb from the two angles to the gusset plate if the allowable shear stress in the rivets is 15,000 psi. Assume each rivet carries the same amount of load.
Bridge scour, Determine the magnitude of the contraction scour depth given the following information about the channel and bridge
A well water has the following mineral contents in mg/L: Na+=20; K+=35; Ca+2 =15; Mg+2 =10; Sr=0.5; Cl- =40; HCO3- =65; CO3-2=5; SO4-2=15; and NO3=10.
given bulk density as 1300kg/cubic meter and field capacity as 22% by weight and permanent wilting point as 10% by weight calculate available water capacity.
The man has a mass of 75 kg, and the beam has a mass of 40 kg. The beam is in equilibrium with the man standing at the end and pulling on the cable. Determine the force exerted on the cable by the man and the reactions at pinned support C.
An obstruction is lodged in a 10-ft wide rectangular channel (n = 0.022) that has a botom slope of 0.005. The depth of the channel just upstream of the obstruction is 5.0 ft. If the flow rate is 325 cfs, what is the channel and flow classification
The design of a concrete mix requires 1173kg/m3 of gravel in SSD condition, 582 kg/m3 of sand in SSD condition, and 157kg/m3 of free water. The gravel available at the job site has a moisture content of 0.8% and absorption of 1.5%
Atrazine is adsorbed to a soil that is only saturated by 5%(i.e. only a twentieth of the pore volume is filled with water), how much atrazine is bound to the soil, dissolved in the water, and present as vapor in the gas phase
A jar test has shown that the optimum dose of ferric chlorideconsumes all of the alkalinity. If the amount of the ferricchloride that is in excess is 10 mg/l, how much lime(Ca(OH)2) in mg/l must be added to neutralize the acidformed.
At the instant, the system is at rest and the spring is compressed by 50mm. Determine A) Velocity of block A when the spring is unstretched B) Maximum velocity of Block B C) Maximum deflection in the spring
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