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A square-shaped board (1 m 1 m) with weight of 16 N slides down a 30 o - inclined ramp with a terminal velocity of 22.5 mm/s. Between the board and the ramp there is a 1-mm-thin film of oil with specific weight of 8 kN/ 3 m . Assume the oil is a Newtonian fluid, and a linear velocity profile applies to the oil film. Determine the kinematic viscosity of the oil.
when a potential difference of 144 v is applied to the plates of an air-filled parallel-plate capacitor the plates
consider the isothermal expansion of 4.50 mol of an ideal gas at 450 k from an initial pressure of 12.0 bar to a final
In the gear-and-shaft system shown, the shaft diameters are dab= 2 in. and dcd=1.5 in. Knowing that G = 11.2 x10^6 psi, determine the angle through which end d of shaft cd rotates.
given steam flowing thru converging insulated nozzle 25cm long with inlet diameter of 5cm. at nozzle enterance t325c
a nominally linear electrical output force measuring device has the manufacturer specifications listed below. the
if silcion is cooled quickly it will form glass instead of crystallyzingone way to do this is to deposit si atoms onto
a heat pump with refrigerant-134a as the working fluid is used to keep a space at 25degc by absorbing heat from
a helium gas is heated at constant volume from 100kpa 300k kelvin to 500k. a following process expands the gas at
a 10 gram mass is attached to the end of a 2 meter string which is perfectly flexible infinitely strong and weightless.
saturated steam at 2 mpa is contained in a piston-cylinder device. the initial volume is 0.25 cubic meters. heat is
a subway train is being designed for operation between two stations a and b which are 2 km apart. if the maximum
a grinding wheel is designed to run at 1800 rpm and has a weight of 2.3 lbf. if the grinding wheel has a thickness of
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