84. ••The terminal velocity of a raindrop that is 4.0 mm in diameter is approximately 8.5 m/s under con- trolled, windless conditions. The density of water is 1000 kg/m. Recall that the density of an object is its mass divided by its volume. (a) If we model the air drag as being proportional to the square of the speed, Fårag = -bv², what is the value of b? (b) Under the same conditions as above, what would be the terminal velocity of a raindrop that is 8.0 mm in diameter? Try to use

84. ••The terminal velocity of a raindrop that is 4.0 mm in diameter is approximately 8.5 m/s under con- trolled, windless conditions. The density of water is 1000 kg/m. Recall that the density of an object is its mass divided by its volume. (a) If we model the air drag as being proportional to the square of the speed, Fårag = -bv², what is the value of b? (b) Under the same conditions as above, what would be the terminal velocity of a raindrop that is 8.0 mm in diameter? Try to use

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter11: Fluid Statics

Section: Chapter Questions

Problem 50PE: Scurrilous con artists have been known to represent gold-plated tungsten ingots as pure gold and...

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Scurrilous con artists have been known to represent gold-plated tungsten ingots as pure gold and sell them to the greedy at prices much below gold value but deservedly far above the cost of tungsten. With what accuracy must you be able to measure the mass of such an ingot in and out of water to tell that it is almost pure tungsten rather than pure gold?
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