A U-tube open at both ends is partially filled with water (Fig. P14.71a). Oil having a density

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A U-tube open at both ends is partially filled with water (Fig. P14.71a). Oil having a density of 750 kg/m3 is then poured into the right arm and forms a column L = 5.00 cm high (Fig. P14.71b)
(a) Determine the difference h in the heights of the two liquid surfaces.
(b) The right arm is then shielded from any air motion while air is blown across the top of the left arm until the surfaces of the two liquids are at the same height (Fig. P14.71c)
Determine the speed of the air being blown across the left arm. Take the density of air as 1.29 kg/m3.

Transcribed Image Text:

Shield Oil Water Figure P14.71

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Density is a measurement that compares the amount of matter an object has to its volume. An object with much matter in a certain volume has a high density. Density helps us predict whether something will float. In this video, the density of oil is assessed by adding food color to the oil above water.