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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.
an insulated rigid tank initially contains 1.4-kg saturated liquid water and water vapor at 200degc. at this state 25
a cylindrical stone mix concrete beam of diameter d 0.45 initially at ti 20c is exposed to hot gases at tinfinity
a tank truck carries a cargo of liquid which fills 23 of the tank figure 3. the tank is open tonbspthe atmosphere. if
sea-level air is drawn from the atmosphere through a duct and into a vacuum tank. if the air remains a perfect gas at
a 0.075 kg ice cube at 0 degree c is dropped into an insulated styrofoam cup holding 0.33 kg of water at 25.0 degree c.
A tank that volume is unknown is divided into two parts by a partition. One side of the tank contains 0.01 m3 of refrigerant R-134a that is a saturated liquid at 0.8 MPa, while the other side is evacuated. The partition is now removed, and the refrig..
a piston-cylinder device contains air initially at 150kpa 20oc and 0.5m3. the air is now compressed in a polytropic
a beam consists of three planks connected as shown by 3/8 in diameter bolts spaced every 12in.along the longitudinal axis of the beam.knowing that the beam is subjected to a 2500lb vertical shear, determine the average shearing stress in the bolts..
1. a fire hose nozzle has an orifice diameter of 1inch. according to some fire codes the nozzle must be capable of
Saturated liquid-vapor mixture of water, called wet steam, in a steam line at 2000 kPa is throttled to 100 kPa and 120?C. What is the quality in the steam .
an air conditioner operating at steady-state takes in moist air at 27 oc 1 bar and 70 relative humidity. the moist air
a thin aluminum sheet is to be used to form a closed thin-walled section. if the total length of the wall contour is
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