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A layer of ice is placed on a flat hot surface with a constant temperature of 70 °C. The initial layer thickness is 10 cm. The ice temperature and the outside air temperature are equal to 0 °C. Assuming that water formed during the ice melting remains between the ice and the hot plate, evaluate the time required for complete melting of the ice layer
at time t0 the postion vector of a particle moving in the x-y plane is r5i m. by time t 0.02 s its position vector has
A) Calculate the velocity in the tunnel test section. B) Compute the total pressure at the test section.
The desire is to raise the temperature of the ambient air from 60 degree F to 350 degrees F ---- I need to calculate the amount of steam energy in BTU's per minutes and lbs of steam per minute necessary to accomplish the increase in air temperatur..
Air at the rate of 18 kg/s is drawn into the compressor of a jet engine at 55 kPa and -23oC and is compressed reversibly and adiabatically to 276 kPa. Determine the required power input to the compressor expressed in horsepower.
Calculate the force required in direct extrusion of 1100-O aluminum from a diameter of 6 in. to 2 in. Assume that the redundant work is 30% of the ideal work of deformation, and the friction work is 25% of the total work of deformation.
a mass-spring-damper system has a mass of 100 kg. its free response amplitude decays such that the amplitude of the
a 0.5m3 rigid tank contains refirgerant r-134a initially at 200 kpa and 40 quality. heat is now transferred untill the
find omega3 va vb and vc of the mechanism below using the instant center graphical method. develop the linear graph and
for problem 372 in meriam and kraiges 6th edition dynamics why is the max normal force at the side? how can we prove
i want a unique version of this
refrigerant 134a flows at steady state throught a horizontal pipe having an inside diameter of 4 cm entering as
A connection of rod of 50 mm diameter has a rectangular block 50 mm wide and 25mm thick forged at its end. A turned radius of 25 mm joins the rod and the block. Draw the projections of the rod showing curves of intersection.
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