A meat baster consists of a squeeze bulb attached to a plastic tube. When the bu

Question

A meat baster consists of a squeeze bulb attached to a plastic tube. When the bulb is squeezed and released, with the open end of the tube under the surface of the basting sauce, the sauce rises in the tube to a distance h, as the drawing shows. Using 1.013

A meat baster consists of a squeeze bulb attached to a plastic tube. When the bulb is squeezed and released, with the open end of the tube under the surface of the basting sauce, the sauce rises in the tube to a distance h, as the drawing shows. Using 1.013 Times 105 Pa for the atmospheric pressure and 1230 kg/m3 for the density of the sauce, find the absolute pressure PB in the bulb when the distance h is(a) 0.20 m and (b) 0.09 m.

Explanation / Answer

p bulb + pgh = p atm

p bulb = 1.013*10^5 pa -1230*9.8*0.2^2 = 10.*10^4 pa

b) = 1.013*10^5 pa -1230*9.8*0.09^2 = 10.12*10^4

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