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Consider a spring-mass sliding along a surface providing Coulomb friction, with stiffness 1.2 x 104 N/m and mass 10 kg, driven harmonically by a force of 50 N at 10 Hz.
Calculate the approximate amplitude of steady-state motion assuming that both the mass and the surface that it slides on are made of lubricated steel.
compute the wet bulb temperature of moist air that has been cooled and dehumified from 25 c and 80 percent relative
the entire assembly is placed in an environment whose temperature is 200c. determine the volume of chamber 1 when thermodynamic equillibrium has been estabilished.
Consider a diamond shaped airfoil oriented to the oncoming stream. Approximate results since the inclination angles are small. All four faces are same length. Angle of attack is 10 deg. According to Newtonian hypersonic theory, Find the numerical val..
Moist air at 45?C and relative humidity 30% (State 1) with another stream of moist air at 20?C and relative humidity 50% (State 2) in an adiabatic duct. Mass flow rate of dry air is 0.8 kg/s at section 1 and 1 kg/s at section 2. The mixed stream (Sta..
the pressure temperature and volume at the beginning of the compression process in an air-standard otto cycle are 100
a chemical rocket is used for launch into earth orbit. at the end of the combusion chamber the stagnation temperature
a transistor in a stereoamplifier dissipates 0.4 w within a housing that is cylindrical radius 8 mm and height 8 mm.
the figure below shows the geometrical stress concentration factor k for a flat bar loaded in uniaxial tension. the
1. given two single-pole switches write a program that will turn on an output when both switch a and switch b are
when the rubber bands of the sling shot are pulled back each rubber band is stretched 3 in. the natural length and the
an exhaust fan in a building should be able to move 5 lbms air at 14.4 psia 68 f through a 1.25 ft diameter vent hole.
A cylinder fitted with a frictionless piston contains water at 300 kpa and 200C, at which point the volume is 0.2 m^3. The piston is now moved slowly, compressing the water to a pressure of 700 kpa. During this process PV^0.9 = constant.
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