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Air undergoes a polytropic process in a piston-cylinder assemply from P1 = 14.7 lbf/in^2, T1 = 70 degrees F to P2 = 100lbf/in^2. Plot the work and heat transfer, each in Btu per lb of air, for polytropic exponents ranging from 1.0 to 1.6. Evaluate the heat transfer introduced by assuming constant specific heat at constant volume (c sub v) evaluated at 70 degrees F. Discuss your results. Use Matlab for this.
a truck travels on a level roadway. after traveling initially at 65 mph the brakes are applied so all tires are on the
a boy tosses a ball in the vertical direction off the side of a cliff. if the initial velocity of the ball is 15ms
the 20 kg mass is released from the position shown and falls on the linear spring k 30000 nm. use conservation of
steam at 3mpa and 700 degrees c is available at one location in an industrial plant. at another location steam at 2mpa
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.
1. consider the element platinum which has an atomic radius of 0.139 nm and a room temperature density of 21.45 gcm3.a.
Determine the factor of safety against net section yield in the presence of the crack and determine the factor of safety against brittle fracture for the same conditions.
a helicopter moves horizontally in the x direction at a speed of 120 mih. knowing that the main blades rotate clockwise
a crate containing 40 bricks each of mass 1.3kg is placed on a storage framework as shown.a calculate the reaction
the stagnation temperature and pressure in the jet pipe of a turbojet engine are found to be 2.4 bar and 1000k under
a piston-cylinder device containing water undergoes a thermodynamic cycle consisting of the following three
can the flow field given by v 1x2 i - 2 x 1y j represents a steady and incompressible two dimensional flow?a if yes
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