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If the standard deviations are obtained to be 4N-m and 5 rpm for torque-165 N-m and rotational speed-3000 rpm through a large number of measurements,
(a) calculate the power of the engine. (b) Calculate the standard deviation of the power. (c) Calculate the random and systematic uncertainty of the power. (d) calculate the total uncertainty of each power measurement at a 95% confidence level.
a diffuser for an incompressible inviscid fluid of density ? 1000 kgm3 consists of a diverging section of pipe. at the
a projectile is fired at an angle of 62deg from the horizontal with a velocity of 704 ftsec. if it lands 4.75 seconds
methane escapes through a small 10-7 m2 hole in a 10-m3 tank. the methane escapes so slowly that the temperature in the
a prototype 90 degree pipe elbow has ethyl alcohol at 20 degrees celsius flowing through it. the pressure drop through
Show that the total true strain is the sum of the true strains in each step, that is the true strains are additive. Show that using engineering strains, the strain for each step cannot be added to obtain the total strain.
a ball bearing is moving radially outward in a slotted horizontal disk that is rotating about the vertical z axis. at
air in a piston-cylinder assembly initially at 290 k and 100 kpa undergoes two internally reversible processes in
consider the flow of air over a vertical flat plate at a low velocity u1 in ambient pressure p1. the plate surface
derive the scaling relation for the strain energy release rate of crack extension under fixed displacement. clearly
a vapor-compression refrigeration cycle employed in a heat pump uses refrigerant r-134a and provides 15 kw of heating.
for a four bar linkage with r1 6in r2 3 in r3 4in r4 4 in and initially in a non-crossed configuration opena find
a venture necked-down section in a pipe develops a low pressure that can aspire fluid upward from a reservoir. derive
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