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The water clock (clepsydra) shown in Fig. P3.101 is an ancient device for measuring time by the falling water level in a large glass


The water clock (clepsydra) shown in Fig. P3.101 is an ancient device for measuring time by the falling water level in a large glass container. The water slowly drains out through a small hole in the bottom. Determine the approximate shape Rtt of a container of circular cross section required for the water level to fall at a constant rate of 5 cm/hr if the drain hole is 1.5 mm in diameter. What size container (h and RO) permits the clock to run for 24 hr without refilling? Water - R) level V Figure P3.101 The water clock (clepsydra) shown in Fig. P3.101 is an ancient device for measuring time by the falling water level in a large glass container. The water slowly drains out through a small hole in the bottom. Determine the approximate shape Rtt of a container of circular cross section required for the water level to fall at a constant rate of 5 cm/hr if the drain hole is 1.5 mm in diameter. What size container (h and RO) permits the clock to run for 24 hr without refilling? Water - R) level V Figure P3.101

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