The air pressure at the bottom of the swimming pool, assume pool is near to sea level now the air pressure is constant over a volume container.

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A square metal sheet 2.5 cm on a side and of negligible thickness is attached to a balance and inserted into a container of fluid. The contact angle is found to be zero, as shown in Figure a, and the balance to which the metal sheet is attached reads 0.42 N. A thin veneer of oil is then spread over the sheet, and the contact angle becomes 180°, as shown in Figure b. The balance now reads 0.41 N. What is the surface tension of the fluid? x Your response differs from the correct answer by more than 10%. Double check your calculations. N/m a b

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Chapter 15.3, Problem 15.4CE

To determine

The air pressure at the bottom of the swimming pool, assume pool is near to sea level now the air pressure is constant over a volume container.

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