Instantaneous rate of evaporation
A spherical drop of water, 0.5 mm in diameter, is falling at a velocity of 2.15 m/s through dry still air at l-atm pressure. Estimate the instantaneous rate of evaporation from the drop if the drop surface is at 60°C and the air is at 100°C.
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A bank finds that a certain area within a city contains many "risky" investments and therefore refuses to give loans to people who live and work in the area. Do you feel it is ethical for government to step in and ban such a practice?
Estimate the instantaneous rate of evaporation from the drop if the drop surface is at 60°C and the air is at 100°C.
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Discuss your results with respect to the aims of the experiment rolling ball part velocity measurements. How does the measurement of the diameter of the ball obtained using the photogates compared with those obtained using the ruler and calipers?
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