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Pressure in a water container can be measured by an open vertical tube called a piezometer. If the expected water rise is about 26 cm, what tube diameter is needed to ensure that the error due to capillarity will be less than 3 percent? (Round the final answer to two decimal places.)
a 31' solid circular bar of 2" diameter is fixed to a wall. it is made of aluminum of E=10*10^6. a 30" circular solid 1" diameter aluminum bar is welded to the 2" bar at a 30" centerline perpendicular relative to the other bar per the diagram.
The settlement analysis for a proposed structure indicates that 6cm of settlement will occur in 4 yr and that the ultimate total settlement will be about 25cm. estimate (a) the ultimate total settlement and ..
Determine the rate of ammonia (NH4-N) utilization and the biomass growth rate for the following conditions:
A small chunk of the original sample had a wet weight of 140.9 grams and weighed 85.2 grams after drying. Compute the water content, using the correct number of significant figures.
The Earth's surface creates a boundary layer in the atmosphere. The velocity profile near the surface can be expressed as a power law, u = a * y n, where the constants a and n depend on the roughness of the surface.
Roller coasters are designed so that the riders will not experience more than a certain level of g-force during the ride. (The rider would experience B g's if hte normal force were Bmg where B is a numbe
a round steel rod, 25 mm in diameter, subjected to a bending moment of 160 Nxm. calculate the maximum bending stress.
Determine the moment of inertia and the radius of gyration of the shaded area with respect to the x axis.
Given that the seperation distance between the charges is 5m, q1 = -3q2, find the position where the net electric field is zero. Do not use infinity.
A coast guard helicopter hovers between an island and a damaged sailboat. How would you calculate the direct distance between the helicopter and the sailboat? From the island, the angle of elevation to the helicopter is 73 degrees. From the helicopte..
Break Even Stripping Ratio (BESR), Given an underground total mining cost of $8.85 per tonne, surface mining costs of $2.95 per tonne of ore, and surface mining stripping costs of $1.75 per tonne of waste
What is the pH value of water containing 0.005 M of an acid with a acid dissociation constant of 0.001 M. The dissociation of the acid in water can be represented as: HA H+ + A-
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