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A piston-cylinder device contains helium gas initially at 145 kPa, 20 degrees C, and 0.5 m^3. The helium is now compressed in a polytropic process (PV^n = constant) to 390 kPa and 140 degrees C. Determine the heat loss or gain during this process.
a frictionless piston cylinder device with a set of stops contains .5m3 of saturated h2o vapor at 200 kpa. at this
find the force required for the direct extrusion of commercially pure aluminum 1100-o billet 8 in in diameter into a
Block B of the mechanism is confined to move within the slot member CD. If AB is rotating at a constant rate of AB = 3rad/s, determine the angular velocity and angular acceleration of member CD at the instant shown.
a carnot engine operates between two reservoirs maintained at 400 degrees celcius673.15k and t2 respectively. the heat
For the pendulum shown in the figure,the restoring torque due to gravity is given by T=mgLsin(thita). Derive the linearised equation about the operation point thita=0.
toughness is proportional to the amount of energy storedput in to a material or structure when a stress is applied.
a small toy car of mass 50 gm is released from rest at a height h to slide down a ramp into a vertical loop of diameter
You have a spring-mass-damper-system, where when the 200g mass was hung on the spring-damper assembly, it deflected by 2 cm. Find natural frequency? Find resonant frequency
suppose a satellite in geosynchronous orbit has just passed above the international space station with respect to the
Calculate the velocity of a satellite in orbit around the Earth in a Geosynchronous orbit. Use the definition of a sidereal day, which is 86164.09 seconds. What is the orbit height in km. Show the calculations
suppose that 1000 is deposited into an account assuming the intrest is compounded quarterly that is one-fourth of the
a cantilever beam member made from steel with hollow circular cross section experiences an axial load of 300 kn f1 and
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