(Solved): A liquid-filled tube called a manometer can be used to measure the pressure msside a contanner by c ...

A liquid-filled tube called a manometer can be used to measure the pressure msside a contanner by comparing it to the atmospheric pressure and measuring the height of the liquid. Such a device (filled with mercury) is shown in the figure, measuring the pressure inside a jar of peanuts. The mercury level on the side of the manometer which is open to the air is \( 19.8 \mathrm{~cm} \) lower than on the side connected to the jar. (o \( 50 \% \) Part (a) Find the gauge pressure in the jar, in units of Pa. Assume the density of mercury is \( 13.5 \) \( \mathrm{g} / \mathrm{cm}^{3} \)