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A spring stiffness k= 500 n/m is mounted against a 10 kg block. if the block is subjected to a force of 1 KN determine the velocity of the block at s=0.3 m when s=0, the block is at rest and the spring is uncompressed. The coefficient of fricktion is 0.2 . Use work and energy principle to find velocity.
a refrigerant at -40degc flows inside a copper pipe inside diameter 3 cm outside diameter 3.4 cm with a convective
water in a piston-cylinder assembly with an initial volume of 0.01m3 has an initial temperature of 120c and an initial
saturated liquid water is compressed from 100 kpa state 1 to 2.5 mpa state 2 in an adiabatic pump having 85 isentropic
a solar-thermal-electric power plant collects energy from sunlight focused on a high-temperature collector where solar
each wheel of the motorcycle has mass mw 9 kg radius r 330 mm and moment of inertia i 0.8 kg-m2. the combined mass of
Refrigerant R134a enters the compressor of a refrigerator at 0.14 MPa and -10°C at a rate of 0.12 kg/s and leaves it at 0.7 MPa and 50°C. The refrigerant is cooled in the condenser to 24°C and 0.65 MPa and it is throttled to 0.15 MPa.
air enters a converging-diverging nozzle at 700 kpa 240 k and ma 0.3. the inflow nozzle area is 13 cm2 and the
saturated ammonia vapor leaves an evaporator at 10 f and 0.5 lbms. the velocity must be less than 15 fts. what is the
estimate the density of an aluminum-magnesium alloy used for soda cans as a weighted average of the densities of
a steam power plant has high and low pressures of 20 mpa and 10 kpa respectively and one open fwh operating at 1 mpa
a continuous gravity decanter is to separate chloro-benzene with a density of 1109 kgm3 from an aqueous wash liquid
in a mechanical coal-washing process a portion of the inorganic sulfur and ash material in the mined coal can be
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