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A witch lifts her cauldron of boiling liquid with a pulley system. Once the cauldron is lifted, liquid issues from two identical holes of cross-sectional area 2,000 mm2 (each) with a velocity of 30 m/s. The liquid sprays 30o below the horizontal. Calculate the force P required to give the cauldron an upward acceleration of 0.5 m/s2 from rest if it contains 40 kg of liquid at the time. The mass of the cauldron itself (when empty) is 20 kg. Assume the density of liquid to be that of water.
Compute the fugacity’s of ethane and n-butane in an equimolar mixture at 373.15K at 1, 10, and 15 bar total pressure assuming that the Lewis-Randall rule is correct.
the springs of an automobile trailer are compressed 10.6 cm under its weight. find the critical speed when the trailer
a) What is the temperature and state of the steam in the pipe? b) What is the quality of the steam in the pipe?
the 5-kg rm kg cylinder is suspended from two equal-length cords. the end of each cord is attached to a ring of
a roughing section of a broach is to remove stock 3.2 mm deep from a steel surface205 mm long x 50 mm wide each tooth
steam enters an adiabatic turbine at 8 mpa and 520 degc with a volumetric flow rate of 0.8 m3s and exits at 30 kpa. the
a spherical container with volume 0.05m3 is pressurized up to 800kpa absolute pressure. air is released suddenly
A specimen of aluminium having a rectangular cross section 9.9 mm × 13.0 mm (0.3898 in. × 0.5118 in.) is pulled in tension with 35300 N (7936 lbf) force, producing only elastic deformation. The elastic modulus for aluminium is 69 GPa (or 10 × 10 6..
consider the 2d inviscid flow over a body of some known shape. write down general expressions for the total aerodynamic
derive an expression for the compressibility of air represented by tau for 1 and isothermal process and 2 for an
an engine operates on an air standard otto cycle with the compression ratio of 91. the pressure and temperature at the
an ammonia absorption refrigeration cycle requires 2500 btulbm heat transfer in the generator.saturated vapor leaves
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