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a unifor wheeel of 600mm weighing 5kn against a rigid rectangular block 150mm height as shown in fig.find the least pull through the centre of the wheel required to just turn the wheel over the corner of the block also find reaction of the block at A.all surfaces are smooth
two resistors are given r1 470 ohms and r2 1200 ohms a the two resistors are connected in series with a 48 v source.
for a silicon chip at steady state determine the rate of entropy production. the chip is 5 mm on a side and 1 mm in
an adiabatic pump operating at steady state compresses liquid water from an initial condition of 10 bar and 40degc to a
What is the minimum coefficient of static friction between the jaws and the tube which will enable the tongs to grip the tube without slipping?
a steel plate is to be attached to a support with three bolts. the plate is 50 mm wide and 11.2 mm thick and the yield
Find the terminal velocity of an 8.5-inch-diameter sphere weighing 16 lbf falling through the following fluids under the action of gravity: (a) the standard atmosphere at sea level; (b) the standard atmosphere at 10,000 ft elevation above MSL; (c) wa..
a steam turbine operates steadily under the following condions. at the inlet p2.5mpa t450 degrees c and v40 ms. at the
The true stress-strain curve of a material obeys the power-hardening law with n = 0.18. A piece of this material was given a tensile strain of ε = 0.03 before being sent to a laboratory for tension testing. The laboratory workers were unaware of th..
a liquid sodium flowing a 100 kgs enters a heat exchanger at 450 c and exits at 350 c. the specific heat of sodium is
a steady flow steady state air compressor handles 4000 ft3min measured at the intake state of 14.1 psia 30.0degf and a
Calculate the concentration of vacancies in Pb at its melting temperature of 327oC. Assume an energy for vacancy formation of 0.55 eV/atom. Lead has an atomic weight of 207.2 g/mol and a density of 11.35 g/cm3.
1. half a mole of a monoatomic ideal gas is initially at 1000 k and a pressure of 20 bar. it is expanded adiabatically
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