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(1) Determine the base of the following arithmetic operation(assume that the base fo the stystem is x)
300/20 = 12.1
1234+5432=6666
(2) Find the product of two hexadecimal integers 123 andDEF
water from a waste water treatment plant is released into a receiving pond that has a volume of 5 ac-ft. one of the reasons for doing this is to assure that the chlorine residual is below 0.1mg/L before the water is released to a stream as require..
An existing power plant has been found to produce SO2 concentration of 20µg/m3 at a distance of 800m directly downwind from the stack when the wind is 4m/s from the north during a class C stability situation.
compute the critical buckling load for a 2.5m timber column of full size square section 0.10m x 0.10m. The column has pinned ends(k=1). Assume the modulus of elasticity is 12Gpa and that the Euler formula applies
Calculate uniform load (in addition to self wt.) which will cause the section to begin cracking
A 25-mm-diameter shaft .5 m long is pulled through a cylindrical bearing. The lubricant that fills the 0.3-mm gap between the shaft and bearing is an oil having a kinematic viscosity of 8.0 × 10-4 m2/s and a specific gravity of 0.91.
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 cross section of a cottage, 20 ft wide, is an isosceles triangle. If the slope of a side is 1.75 and there is a second floor 8 ft above the ground floor, what is the width of the second floor?
A concrete mix witha 3-inch slump, w/c rtion of .5, ans sand with a fineness modulus of 2.4 contains 1700 lb/yd^3 of coarse aggregate. compute the required weight of coarse aggregate per cubic yard.
A 40 mm diameter solid brass shaft in a marine vessel is subjected to a simultaneous torsion of T=250 N.m and axial thrust of P=25kN. Show the combined state of stress on the surface element of the shaft.
A motorists inflates the tires of her car to a gauge pressure of 180 kilopascals on a day when the temperature is -8.0 degrees Celsius. When she arrives at her destination, the tire gauge pressure has increased to 245 kilopascals.
The microstructure of an iron-carbon alloy consistsof proeutectoid ferrite and pearlite; the mass fractions of thesetwo microconstituents are 0.174 and 0.826, respectively. Determinethe concentration of carbon in this alloy.
Determine the magnitude of the couple force so that the resultant couple moment on the crank is zero.
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