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Air undergoes a polytropic expansion process in a piston-cylinder assembly from 75 psia and 300 F to 15 psia. Employing the ideal gas model with constant specific heat ratio k, determine the temperature at the end of the process and the amounts of work and the heat transfer per unit mass in Btu/lb if a) n=1.3 b) n=k with k=1.4 and R=0.0686 Btu/lbR
A 30.0 capacitor initially charged to 30 is discharged by a 1.40 resistor. How long does it take to reduce the capacitor's charge to 2.00.
question1a projectile is launched at 28 ms at 22 degrees above horizontal from the top of a building that is 62 meters
three identical thin rods each of length l and mass m are welded perpendicular to one another as shown in figure
he edge of the thimble of a micrometer moves a distance of 2.0 mm when it is given four complete revolutions. calculate the least count of the micrometer
An electric charge on the x-axis oscillates sinusoidally about the origin. A distant observer is located at a point on the positive z-axis. In what direction will the electric field oscillate at the observer's location
Calculate the power spectrum of square pulse with amplitude, A and length, τ0. plot the power spectrum, shower several zero-crossings
The efficiency of a certain machine is 0.50. If the cold temperature is 527 degrees celsius, what is the HOT temperatur
q1. for years marine scientists were mystified by sound waves picked up by underwater microphones in the pacific ocean.
On your way to class you are walking North up the oval. From Dale Hall you walk 180 m towards Nielsen Hall when you meet a friend heading the other direction.
Two blocks, m1=1.0kg and m2=2.0kg are connected by a light string over a pulley. what is the acceleration of the system
The K series of the discrete x-ray spectrum of tungsten contains wavelengths of 0.018 5 nm, 0.020 9 nm, Determine the ionization energies of the L, M, and N shells
A 4.0 m long horizontal boom (of negligible weight) can pivot at the wall to which it is attached and it is supported by a cable hooked 0.6 m from the far end that is at an angle of 37.2 degrees to the boom. find the normal force of the wall pushin..
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