Engineering, 21.08.2019 21:30 aryal191
Aprojectile in flight canties with it a more or less conical-shaped shock front. from physical reasoning it appears that at great distance from the projectile this shock wave becomes truly conical and changes in vclocity and density across the shock becomes vanishingly small. photographs of a bullet in light show that at a great distance from the bullet the lotal included angle of the conç is 50,30°. the pressure and lymperature of the undisturbed air ir 100.801 kpa and 22.78°c. respectively. calculate thç velocity of the bullet, and the mach number of the bullcl. relative lu the undisturbed air.
Answers: 1
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Engineering, 04.07.2019 18:20
Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above
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Engineering, 04.07.2019 19:10
What is the major difference between thermoplastics and thermosetting plastics from the polymerization structure point of view?
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Agas contained within a piston-cylinder assembly e end nation about same energy states, 1 and 2, where pi 10 bar, v undergoes two processes, a and b, between the sam 0.1 m3, ui-400 kj and p2 1 bar, v2 1.0 m2, u2 200 kj: process a: process from 1 to 2 during which the pressure- volume relation is pv constant process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to +20 0 state 2 kinetic and potential energy effects can be ignored. for each of the processes a and b, (a) sketch the process on p-v coordinates, (b) evaluate the work, in kj, and (c) evaluate process the heat transfer, in kj
Answers: 2
Aprojectile in flight canties with it a more or less conical-shaped shock front. from physical reaso...
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