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1. The beam is supporting a concentrated load due to a 20 tons crane which moves from A to F. What is the maximum shear force due to the crane at support B? Also determine the maximum moment due to the crane at point B and C.
2. A man weighing 80 Kg is moving from point A to Point G in the following wooden bridge. This bridge can be assumed as a beam. Draw the maximum reaction force due to the man's weight at points A and E. Also draw the maximum shear and moment force due to the man's weight at points C,D and F.
3. Draw the moment influence line in rotational spring at points B and the force influence line in the translational spring at point F. (Assume a concentrated force is moving from point A to F).
Determine the dimensions of the box that will minimise thecosts of materials.Based on material costs alone,how many bins canthe manufacturer produce?
An activated sludge system operates at a flow rate (Q) of 400 m3/day with an incoming BOD of 300 mg/L. The kinetic constants for this system are Y = 0.5 kg SS/kg BOD, Ks = 200 mg/L, ?
What is the chemical name of the first hazardous air pollutant under Title III regarding the Clean Air Act
a photograph is taken of a transverse wave travelling along a length of rope. at this instant the shape of the wave is
The total dissolved inorganic carbon (TIC) of a sample of groundwater is 8.33 mM. The temperature of the aquifer is 15C, the pH is 7.5, and the ionic strength is 0.05 M. What is the H2CO3, HCO3-, CO3 2-, and the partial pressure of CO2? [Use activ..
A new machine will cost $25,000. The machine is expected to last 4 years and have no salvage value. If the interest rate is 12%, determine the return and the risk associated with the purchase.
An old occupational hygiene rule of thumb is that a 10 micrometer (micron) silica particle settles at a rare of 1 ft/min (0.5 cm/s). What is the true settling velocity for such a particle? The density of silica is 2600 kg/cubic meter (2.6 g/cubic ..
A water sample contains 118mg/L of bicarbonate ion, 19mg/L of carbonate ion, and has a pH of 9.5. What is the alkalinity of this water expressed as mg/L of CaCO3?
What is the highest downward speed (the terminal velocity), in miles per hour, ? At the terminal velocity the downward force (the weight) is equal to the upward force (the aerodynamic drag force).
consider a house into which radon is emitted through cracks in the basement. the total volume of the house is 650 m3
The allowable stress in a steel shaft with an outside diameter of 1.5in and an inside diameter of 1.1in is 12,000psi. What hp can the shaft deliver at 1750rpm
If design is needed, use a W-built-up cross section; select the W section and the thickness of the plate. Calculate Cc and use the AISC equations E2-1 and E2-2 to determine the allowable stress for each axis and ultimately the allowable load for t..
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