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A computer code is being developed to analyze a 12.5-mm-diameter, cylindrical sensor used to determine ambient air temperature. The sensor experiences free convection while positioned horizontally in quiescent air at T∞ = 27°C. For the temperature range from 30 to 80°C, derive an expression for the convection coefficient as a function of only ?T - Ts - T∞, where Ts is the sensor temperature. Evaluate properties at an appropriate film temperature and show what effect this approximation has on the convection coefficient estimate.
a space is at a temperature of 75 f 24 c and the relative humidity is 45 percent. find a the partial pressures of the
a plane wall 15 cm thick has a thermal conductivity given by the relation k 2.0 0.0005t wmk. where t is in kelvin.
calculate the vapor pressure-temperature relationship of liquid iron.
coast guard pararescue jumpers are trained to leap from helicopters into the sea to save boaters in distress. the
a 5 cm orifice meter is being used to measure the flowrate of 70 degree c water. the mercury manometer shows a height
A quantity of water with in a piston-cylinder assembly executes a Carnot power cycle. During isothermal expansion, the water is heated from saturated liquid at 50 bar until it is a saturated vapour. The vapour then expands adiabatically to a pressure..
a dynamics student is called on to investigate a two-car collision. its known that car a struck car b. mass of car a is
Explain how you would expect the strength and ductility of a crystalline material to change as the ASTM Grain size number change from 14 to 3.
Verify that pure shear has principal directions at 45 degrees from the original orientation of the block. Show that the principal directions for stress and strain are the same. Is this due to the nature of Hooke's Law? Do you expect it to be true ..
a gas is contained ina vertical, frictionless piston cylinder device.the piston has a mass of 4kg and a crossectional area of 35cm^2. a compressed spring is above the piston exerts a force of 60N on the piston .if the atmospheric pressure is 95kpa..
consider the following gas well drilled 2000 meters vertically with a essentially horizontal leg of 200 meters length.
a 0.25kg block is held compressed 0.1m against a spring k1000nm. what is the max height of the block after it is
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