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An elastic spring of stiff ness 0.4 kN m 1 is suspended vertically with a load attached to its lower end. When displaced, the load is seen to oscillate with a periodic time of 1.27 s. Determine (a) the magnitude of the load, (b) the acceleration of the load when it is 25 mm from the equilibrium position and (c) the tension in the spring when the load is 25 mm from the equilibrium position.
a cylindrical pressure vessel of diameter 2 m and wall thickness 20 mm is subjected to an internal pressure of 20 bar 2
consider a steam turbine in which steam enters at 10.45 mpa and 780k with a flow rate of 38.739 kgs. a portion of the
the inside surfaces of a pottery oven are all at 500oc. a cube of clay 10 cm on each side ? 0.9 initially at 20oc is
an air compressor operates at steady state with air entering at p1 1 bar t120?c and exiting at p2 2 bars. determine the
Write code to calculate and plot (on screen) the Fourier Transform magnitude for each of the ten individual digits. Each number is signalled using two simultaneous tones. Note that the sample rate is 8kHz. Make sure your frequency axis is correctl..
A pressure drop of 200 kPa is measured over a 400-m length of 8-cm-diameter horizontal cast iron pipe that transports 20-C water. Determine the ?ow rate using (a) the Moody diagram and (b) an alternate equation.
What is the effective strain, ε, caused by the rolling? What strain in a tension test (if it were possible) would cause the same amount of strain hardening?
A reversible heat engine receives heat from a heat source at 1000oC and has a thermal efficiency of 45%. The heat engine does maximum work equal to 600kJ. Determine the heat supplied to the heat engine, heat rejected to the heat sink, and the tempera..
air enters a counterflow cooling tower at a rate of 100 m3s at 30 degree c dbt and 40 relative humidity. air leaves at
water flows through a venturi with piezometers attached to the upstream pipe and the minimum area section. the velocity
an open feedwater hearter operating at steady state accepts superheated steam at 500kpa and 200degc and mixes the
water is transferred at a rate of 2.1 cfs from an upper reservoir to a lower reservoir by a concrete pipe 3000 ft long.
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