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The semicircular 5-kg plate rotates about a fixed bearing at O that can exert a maximum frictional moment of 1.2 N · m on the plate.
The horizontal force P is applied to a cord wrapped around the plate periphery and pinned at A. (a) With P = 0, deter- mine the maximum angle () for which equilibrium is possible. (b) From the position determined in (a) calculate the force P required to rotate the body counterclockwise.
Whit is the critical crack length in iron according to the Griffith-Orowan equation if surface energy=10^3J/m^2?
Provide formulae for computing the number of read stall cycles and write stall cycles for a given program executing on a given machine.
in order to compute strains in a composite layer that is one layer consisting of a matrix materials and fibers parallel
a 250mm long brass bar cte 20.5x10-6 0c is setup as shown below. initially when the temperature is 150c there is a
derive a relationship between partial molar excess enthalpy activity coefficient of species i and temperature. assume
Describe the difficulties that may arise when building a system from its components. What particular problems might occur when a system is built on a host computer for some target machine?
for each pair of second-order system time domain specifications below find the corresponding region for the poles in
A rigid tank is heated for 9 minutes with a 800W electrical heater. During this time 70kJ of energy is lost due to heat transfer to the environment. Find the temperature of the refrigerant at the end of the heating process.
a nozzle discharges a stream of water of cross-sectional area a with a velocity va. the stream is deected by a single
a instrument weighing 40lbf is being shipped in a container with foam packaging which has effective vertical stiffness
Express 310 kPa in mm-Hg (millimetres of mercury). (Calculate this using SGHg = 13.6.) Blood pressure that is below about 120/80 mm-Hg is often considered normal. What do these two numbers indicate? Are these absolute pressures or gage pressures?
A steady flow air compressor compresses 50 lb/min from 14 psia and 80 degrees F to a discharge state at 45 psia and 300 degrees F. Heat departs from the air only via circulating water that enters the jacket at 75 degrees F and leaves at 95 degrees..
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