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The 2° tapered pin is forced into a mating tapered hole in the fixed block with a force P = 400 N. If the force required to remove the pin (with P = 0) is P' = 300 N, determine the coefficient of friction between the pin and the surface of the hole. (Hint: The pres- sure (stress) normal to the tapered pin surface remains unchanged until the pin actually moves.
The distributed forces over the surface of the pin may be replaced by an equivalent single resultant force.)
an automobile can accelerate at the rate of 1.5ms2 and can decelerate at 7ms2. if driver never exceeds the speed limit
a straight fin of uniform cross section is fabricated from a material of thermal conductivity 50 wmk thickness w6mm and
at standard atmospheric temperature and pressure 25 c and 1 atm how many moles of dry air be present in a room having a
The electric reheating oven is used to heat a continuous sheet of metal from 25-1000C The metal speed is such that the strip of metal spends 2 hours inside this oven, The sheet thickness is 1cm and the ambient temperature is 25C with the temperature ..
a steam turbine operates steadily under the following condions. at the inlet p2.5mpa t450 degrees c and v40 ms. at the
Take the cardboard back of a pad of paper and cut it into a square. Then support the cardboard horizontally with blocks at each end and apply a weight in the middle. Measure the de?ection.
an inventor claims to have devised a refrigeration cycle that at steady state requires a net power of .8 hp to remove
during the course of a motor test the motor rpm is measured and recorded at regular intervals as990 1030 950 1050 1000
the space between two horizontal parallel flat plates 0.5 cm apart is filled with oil of viscosity ?micro 0.05 kgm.s.
how much heat is needed to a 0.3m3 rigid volume containing saturated water vapor at 1000 kpa in order for final
it is known that the boundary thickness at the position 8 cm from the leading edge is 1.2 mm thick. what is the
A 1.2-lb metal bar initially at 2100oR is removed from an oven and quenched by immersing it in a closed tank containing 28 lb of water initially at 620oR. Each substance can be modeled as incompressible. An appropriate constant specific heat value fo..
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