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The volume of a cylinder is to be determined from measurements of the diameter and length. If the length and diameter are measured at four different locations by means of a micrometer with an uncertainty of 0.5% of reading, determine the uncertainty in the measurement. the measurements are as follow:
Diameter Length (in) 3.992 4.494
3.9892 4.4991 3.9961 4.5110
3.9995 4.5221
an alternation copolymer is known to have a number-average molecular weight of 200000nbspand a degree of polymerization
How the tensile stress and compressive stress result in the moment about neutral axis when the beam fails
a thin metal plate is insulated on the back and exposed to solar radiation on thenbspfront surface. the exposed surface
A luge and its rider, with a total mass of 98 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 39 m/s.
The two mooring cables exert forces on the stern of a ship. Represent each force as a Cartesian vector and determine the magnitude and direction of the resultant.
it is desired to design a system to keep a 1-million-galon capacity water tank filled. the plan is to use a centrifugal
the lower end of the 30 kg slender rod is displaced a small amount and released from the rest. determine the natural frequency of vibration. the springs have stiffness of 500 N/m and they are stretched when the rod is hanging vertically.
the motion of the slender 10kg rod AB is guided by collars of negligible mass that slide freely on the vertical and horizontal rods. knowing that the bar is released from rest when θ=30, determine the velocity of the collars A and B when θ = 60.
Determine if the shaft has infinite fatigue life. If not, determine the number of cycles to failure. Also determine the safety factor for first cycle yield and draw a free body diagram, shear and moment diagrams, and graph the loads on the shaft..
Ideal vapor-compression refrigeration cycle, An ideal vapor-compression refrigeration cycle, with ammonia as the working fluid, has an evaporator temperature of -20c and a condenser pressure of 12 bar
The diffusion constant (Do) and activation energy (Q) of C in BCC Fe is 0.01 cm2/sec and 80kJ/mol respectively. In FCC Fe, the values are 0.21 cm2/sec and 148kJ/mol. At exactly 910oC these two phases can co-exist.
problem i. steam at 5.0 mpa 500 degrees c enters an insulated turbine operating at steady state with a mass flow rate
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