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A light bar AD is suspended from cableS and supports a 20 kg block at C. The extremities A and D of the bar are in contact with frictionless, vertical walls. Determine the tension in cable BE and the reactions A and D
If the column is subjected to an axial compressive force of 800 kN, determine the required diameter of each reinforcing steel bar so that one-third of the load is carried by the steel and two-thirds by the concrete. Assume Esteel= 200 GPa and Econ..
Data from service records show that the time to repair a certain machine is normally distrubuted with a mean of 65 min and a standard deviation of 5 min. Estimate how often it will take more than 75 min to repair a machine.
How much of a reduction in the automobile emission rate would be required to achieve the maximum eight-hour average NAAQS for CO at steady state 9ppmv (10.3 mg/m3)?
Beginning whith the 1-D, steady state, general mass(volume) balance equation Qin-Qout=0 derive the 1-D poisson equation.
A completely mixed flow reactor, with a volume of V and a flow rate of Q, has a zero-order reaction, dA/dt = k, where A is the material being produced and k is the rate constant.
A balloon is being inflated at the rate of 15m^3/min. At what rate is the diameter increasing after 5 min? Assume that the diameter is zero at time zero.
For a mixture 10 mol % methane 20 mol % ethane 70 mol % butane at 50 degrees Fairenheit determine the bubble point pressure
A laptop has a four year life span with an initial cost of $900 and $100 salvage value. According to the straight line method what is the depreciation charges you expect on the laptop
Calculate the pressure inside a 2-mm diameter bubble of water at 20°C and compare with the pressure inside a 2-mm diameter droplet of water at 20°C.
A particle moving along a straight line is subjectd to a deceleration a=(-2v^3)m/s^2 where v is in m/s. If it has a velocity v=8 m/s when t=0, determine its velocity when t=4s.
Only the inner cylinder is rotating. THe velocity distribution is given by V(r)=1000r-0.4/r [m/s]. If the diameters of the cylinders are 3 cm and 5 cm, respectively
Are there any situations when parallel flow option may be preferred instead of a counter flow heat exchanger
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