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It is proposed to use water instead of refrigerant-134a as the working fluid in air- conditioning applications where the minimum temperature never falls below the freezing point. Would you support this proposal? Explain.
a bronze alloy exhibits a yield strength of 350 x 106 pa and a modulus of elasticity of 150 x 109 pa. if a cylindrical
1kg of superheated r-134a at 10 bar and 150oc is cooled and condensed in a cylinder at constant pressure. how much heat
air enters the compressor of a gas-turbine engine at 300k and 100 kpa where it is compressed to 700 kpa and 580k. heat
consider a plane wall 100mm thick and of thermal conductivity 100 w/m .k seady state conditions are known to exist with T1 = 400 k T2= 600 K. determine the heat flux and the temperature gradient off the coordinate systems.
1. graphically verify moseleys law for the k beta1 lines of cu mo and w.2. acalculate the mass an linear absorption
in an effort to reduce the mass of an aluminum bulkhead for a spacecraft a machinist drills an array of holes in the
the basketball player likes to release his foul shots with an initial speed v0 23.5ftsec. what values of the initial
question 1 give examples from your own experience of situations where friction is a desirable and b
the motion of the uniform slender rod of length l0.5 m and mass m 3 kg is guided by pins at a and b that slide freely
a man having the mass of 73 kg sits in the chair which is pin-connected to the frame bc. if the man is always seated in
design a compound gear train that yields a train value of 3001. from interference considerations no pinion shouicl have
Friction between the piston and the cylinder wall can be neglected. For the air, determine the initial and final pressures, in kPa, and the work, in kJ.
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