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Nitrogen at 100C and 600 kPa expands in such a way that it can be approximated by a polytropic process with n = 1.2. Determine the change in the internal energy of the system per unit mass if the final pressure is 100 kPa. Calculate the work and the heat transfer per unit mass during the process. Assume quasi-equilibrium process.
a particle travels around a circular path having a radius of 50 m. if it is initially traveling with a speed of 10 m s
a hydraulic shear applies 2000 lb force to a wedge. it is used to shear plate steel to rough size. the shear has a 14
Compute the x-and y-components of the force acting on the pinB connecting the two members of the machine subjected to the 200-N load.
The acceleration of the car is defined by a=(2t^2+t)m/s^2. Find the position of the car at t = 3 seconds. The car starts from rest.
In the gear-and-shaft system shown, the shaft diameters are dab= 2 in. and dcd=1.5 in. Knowing that G = 11.2 x10^6 psi, determine the angle through which end d of shaft cd rotates.
consider a conical pendulum that is a ball of mass m at the end of a string of length li moving in a horizontal circle
what two maintained tools will hurt an automotive technicians on the job performance?
a full revolution press has 100 rpm flywheel rotation.it has two handed trip devices mounted 20 inches from point of operation how many engagement points on the flywheel would be nessary to make this machine safe?
What is hogr? How much steam pressure is required to maintain adequate vacuum with it? Where are hogr used in general?
What are the percentages of the total heat absorption taking place in the economizer, boiler drum and the superheater, respectively? Assume cp of air and water as 1.005 kJ/kg K and 4.2 kJ/kg K, respectively.
consider an ideal simple gas turbine cycle. for a net power output of 10000 horse power an inlet air temperature of
a simple pulley with the given radius r used to lift heavy objects is positioned 10 feet above ground level. Given that the pulley rotates theta degrees, determine the height to which the pulley is lifted.
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