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Water at 37?C flows at 3 m/s across at 6 cm O.D. tube that is held at 97?C. In a second configuration, 37?C water flows at an average velocity of 3 m/s through a bundle of 6 cm O.D. tubes that are held at 97?C. The bundle is staggered, with ST /SL = 2. Compare the heat transfer coefficients for the two situations.
a rocket is fired from rest at x0 and travels along a parabolic trajectory described by y2120103xm. if the x component
a 250-kg crate b is suspended from a cable attached to a 20-kg trolley a which rides on an inclined i-beam as shown.
at 25 degres c an aqueouse solution containing 35.0 wt h2so4 has a specific gravity of 1.2563. a quantity of the 35
a projectile is launched from point a with initial speed v0 and makes an angle ?n with the horizontal. it hits the
an air-standard brayton cycle is utilized as a jet propulsion engine. the aircraft flies at an altitude of 5000 m at a
find the momentum and buoyant length scales.
consider a front loader washer that weighs 200 lb with a 6 lb towels. the size of the drum is 0.4 m. during a spin
an isolated chamber with rigid walls is divided into two equal compartments one containing steam at 10 bar and 370oc
one kilogram of air as an ideal gas executes a carnot power cycle having a thermal efficiency 50. the heat transfer to
An impeller rotating at 1150 rpm has the following dimensions: b1=3 cm, b2 =1.9 cm, d1=.18 m, d2=.38 m, B1=18 deg, B2=20deg. Assuming radial inlet flow; draw the velocity triangles, find the flow rate and determine the theoretical head and shut off h..
Air, initially at 160 kPa and 325 K undergoes a polytropic state change to 256 kPa and 357.5 K. What is the poly tropic exponent of this process?
The roof is supported by cables. If the cables exert FAB = 100N and FAC = 120N on the wall hook at A, determine the magnitude of the resultant force acting at A.
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