Engineering, 05.05.2020 05:28 theangelsanchez
Suppose the peak displacement amplitude is measured over some finite time for an oscillating spring-mass-damper system. The first peak amplitude y1 is 1.58 cm. The twentieth peak amplitude y20 is 0.61 cm. Calculate the log decrement and the damping ratio for this case, showing all your work.
Answers: 3
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Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false
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Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent
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Engineering, 04.07.2019 19:20
Apiping systems consists of 6 m of 6-std type k and 12 m of 4-std type k, both drawn copper tubing. the system conveys ethylene glycol at a rate of 0.013 m3/s. the pressure drop across the system is to be calculated. there are two 90° elbows in the 6-in pipe, a reduction from the 6-in pipe to the 4-in pipe and four 90° elbows in the 4-in pipe. all fittings are soldered (same as flanged) and regular. the inlet and outlet of the system are at the same height.
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Engineering, 04.07.2019 19:20
A21-tooth spur pinion mates with a 28-tooth gear. the diametral pitch is 3 teeth/in and the pressure angle is 20°, find the following values: the addendum, dedendum, circular pitch, tooth thickness, and base circle diameters.
Answers: 2
Suppose the peak displacement amplitude is measured over some finite time for an oscillating spring-...
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