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A speaker driver can be modeled as a one degree of freedom forced system with damping. The mass of the moving cone is m=0.1 kg and the spring k=50000N/m. The electromagnetic force of the coil produces a forcing function F=100Ncos(\omega t), plot the magnitude X and phase \theta of the vibration of the cone as function of the forcing frequency f in cycles per second for damping coefficients \zeta=.5, 1., 5.
We need to design a piping system that transports 35ft^3/s of water 100ft. The available head is 7ft. The pipe is to be made out of a rough concrete material. Find the necessary diameter for the pipe.
a 14-ft long ladder leans against a wall with the bottom of the ladder placed 4ft from the base of the wall. how high on the wall will the ladder reach.
a certain generating power plant requires 1 mw output. two types of diesel- engine installations are available. one
we want to achieve a concentration of 0.5wt of carbon at a depth of 0.2 mm below the surface of the slab of a metal.
Steam enters an adiabatic nozzle steadily, at 2.5 Mpa and 400°C with a velocity of 50 m/s and exits at 1 MPa and 380 m/s. If the nozzle has an inlet area of 65 cm2, determine: The exit temperature. The rate of entropy generation for this process, in..
a hydraulic dredge is used to dredge sand from a river bottom. estimate the thrust necessary to keep the boat
a projectile is fired at an angle of 62deg from the horizontal with a velocity of 704 ftsec. if it lands 4.75 seconds
a 0.1 m3 rigid cylinder contains saturated water vapor at 100kpa. a pipe with super heated steam at 1mpa 300 degree c
a kitchen contains a standard refrigerator and a window air conditioner. the refrigerator operates at steady state
a shaft which rotates at a constant speed of 160 r.p.m. is connected by belting to a parallel shaft 720 mm apart which
1-kg water in a frictionless piston-cylinder device is initially at 250 degrees Celsius and 300 kPa (state1). A total of 700 kJ of work is done on the water in order to isothermally reduce its volume to 1/20 of its initial volume (state 2). Determine..
an ideal gas p? mrt is heated at constant volume until its temperature is doubled and then cooled at constant pressure
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