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Consider a machine of mass 70 kg mounted to ground through an isolation system of total stiffness 30,000 N/m, with a measured damping ratio of 0.2.
The machine produces a harmonic force of 450 N at 13 rad/s during steady-state operating conditions.
Determine (a) the amplitude of motion of the machine, (b) the phase shift of the motion (with respect to a zero phase exciting force), (c) the transmissibility ratio, (d) the maximum dynamic force transmitted to the floor, and (e) the maximum velocity of the machine.
Employing the intercept technique, determine the average grain size for the steel specimen whose microstructure is shown in Figure 9.25(a); use at least seven straight-line segments.
1. A reversible power cycle operating between hot and cold reservoirs at 1000 K and 300 K, respectively, receives 100 kJ by heat transfer from the hot reservoir for each cycle of operation. Determine the net work developed in 10 cycles of operatio..
the ridigid cube in the sketcha 1.0m tall box with a relief vavle at the top is filled w air at 280k and 100kpa. the
in a quasi-equilibrium process in a closed system a gas expands from a volume of 0.15m3 and a pressure of 120kpa to a
sometime when riding an elevator or driving up or down a hilly road a persons ears pop as the pressure difference
Find the tension in the middle of the rope
a solid cylinder 100 mm in diameter generates heat at a uniform rate of 7 x 106 wm3. the thermal conductivity of the
1. Assume that a parity bit is transmitted for every nibble of data. Design two logic circuits that check a nibble of data and its parity bit to determine if there may have been a data transmission error. Assume first an even-parity system, then a..
Argon is compressed in a polytropic process with n=1.2 from 120 kPa (P1) and 10 °C (T1) to 800 kPa (P2) in a piston-cylinder device. List all the assumptions. Derive the equation of the boundary work (kJ/kg) in terms of P1, T1, & P1. It should includ..
Use a suitable method to predict the racS,T variation along these plates when a= e= 0.1, 0.5, and 0.8 and emissions and reflections are diffuse.
determine the actual and minimum theoretical operating costs, each in $/day.
A bullet is fired horizontally into a wood block resting on a horizontal, frictionless surface. If the mass of the bullet is 0.02 Kg and the velocity is 600 m/s
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