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A random sample of size 56 from a normal population showed a mean of 63 and a sum of squares of deviation from the mean equals to 180. Can this sample be regarded as taken from the population having 65 as mean at 1% level of significance?
an fcc iron-carbon alloy initially containing 0.20 wt c is carburized at an elevated temperature and in an atmosphere
Find the slope of the liquid surface in the can if the merry-go-round spins at 0.3 revolution per second.
bubble dynamics underneath a downward facing anode in hall-heroult cell.1.introductionthe basic characteristics of the
A compressor operating adiabatically is to compress 2.83 m^3/min of air at 29.4C and 102.7 kN/m^2 to 311.6kN/m^2. Calculate the power required if the efficiency of the compressor is 75%. Also, calculate the outlet temperature.
determine the headwater depth of a 1000 mm high by 1500mm wide concrete box culvert operating under outlet control
A reversible heat engine operates between 875 K and 310 K and drives a reversible refrigerator operating between 310 K and 225 K. the engine receives 2000 kJ of heat and the net work output from the arrangement equals 350 kJ. make calculations for..
A block and tackle system with nine supporting strands is used to lift a metal lathe in a manufacturing plant. The motor being used to wind the cable in the pulley system can provide 100 lb. of force.
Consider two-dimensional flow over the double-wedge airfoil shown. Find the lift and drag per meter span acting on the airfoil and sketch the flow pattern. Find the pressure acting on all surfaces.
The external heat transfer coefficient is h=10 W/m^2*K. What is the rate of heat loss to the ambient?
The system shown below is deflected in compression by 6 = 0.014 in. For individual components 1, 2 & 3 find the axial stress in individual component
If the maximum shear stress is limited to one-half of its yield strength and the fillet radius is 0.3 in, what is the maximum torque that can be applied? What power could be transmitted by a similar shaft rotating at 400 rpm?
Two tow trucks lift a 100 lb motorcycle out of a ravine following an accident. If the motorcycle is in equilibrium in the position shown, what are the tensions in cables AB and AC?
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