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A spring-mass system with
vibrates on a horizontal surface with coefficient of friction µ = 0.3 Under a harmonic force of frequency 8 Hz, the steadystate vibration of the mass is found to be 0.2 m. Determine the equivalent viscous-damping constant of the system.
Explain the principle of operation of the position and velocity measurements using a GPS system. Explain the principle of operation of the measurement equipment needed for testing a chosen vehicle subsystem.
An experimentalist claims to have raised the temperature of water from room temperature to 150oC using saturated steam at 200 kPa. Evaluate his claim based on Second law of thermodynamics. A cup of hot coffee at 75oC can only lose heat to the room at..
Water is contained in a 0.2 m3 vessel at 200 C. The mass of water in the vessel is measured to be 2 kg. Determine (a) the pressure in the vessel, (b) the enthalpy, h, of the water in kJ/kg, (c) the mass and volume of vapor in the vessel.
Consider a system consisting of liquid water initially at T1 = 318 K, p1 = 3.5 bar undergoing a process to a final state at T2 = 353 K, p2 = 1.5 bar. Use appropriate equation with the data from the table to evaluate change in specific entropy.
A rigid tank contains nitrogen gas with an absolute pressure of 113.1 kPa. A vacuum pressure gage connected to the tank reads -14.2 kPa-vacuum. What is the local atmospheric pressure (in kPa)?
in pure copper at room temperature there is about one atom vacancy every 1010 atom sites. at the melting temperature
methane ch4 at 25 c 1 bar enters a furnace operating at steady state and burns completely with 140 of theoretical air
consider 100 kg of steam initially at 20 bar and 240 degrees c as the system. determine the change in exergy in kj for
Carbon dioxide flows in a horizontal duct at 7 bar abs. and 300 K with a velocity of 20m/s. At a dowstream section, the pressure is 3.5 bar abs and the temperature is 280 K. if 1.4 x 10^4 j/kg of heat is lost by the fluid between these locations.......
the acceleration a of a slider block and its displacement s are related by the expression a k s where k is a
The odd parity bit for all data received since the circuit was reset. This output should be 0 the clock cycle after a reset since no zeroes or ones have been received by the circuit at that point.
a most fiber-reinforced composites consist of three parts the fibers the matrix and the interfaces. describe the major
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