A meat baster consists of a squeeze bulb attached to a plastictube. When the bul

Question

A meat baster consists of a squeeze bulb attached to a plastictube. When the bulb is squeezed and released, with the open end ofthe tube under the surface of the basting sauce, the sauce rises inthe tube to a distance h, as the drawing shows. Using1.013 × 105 Pa for the atmosphericpressure and 1020 kg/m3 for the density ofthe sauce, find the absolute pressure PB in thebulb when the distance h is(a) 0.20 m and(b) 0.13 m.

A meat baster consists of a squeeze bulb attached to a plastictube. When the bulb is squeezed and released, with the open end ofthe tube under the surface of the basting sauce, the sauce rises inthe tube to a distance h, as the drawing shows. Using 1.013 x 10^5 Pa for the atmosphericpressure and 1020 kg/m^3 for the density ofthe sauce, find the absolute pressure PB in thebulb when the distance h is(a) 0.20 m and(b) 0.13 m .

Explanation / Answer

absolute pressure PB in the bulb PB+*g*h=Po=1.013 × 105Pa =1020 kg/m3 =>PB=9.93*104 Pa for h=0.2 m h=0.13 => PB=1*105 Pa

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