Each of six barrels is filled to a height h above the bottom with a liquid of density ρ. Each barrel has a hole of radius r in its side. The center of each hole is 20 cm above the barrel bottom. A plug in the hole keeps the liquid from escaping. Rank the barrels in order of the force on the plug due to the liquid in the barrel, from largest to smallest.

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(a) r= 1 cm, h = 100 cm, p = 1000 kg/m3 (b) r=1 cm, h = 120 cm, p = 1000 kg/m3 (c) r= 1.25 cm, h = 120 cm, p = 800 kg/m3 (d) r= 1.25 cm, h = 100 cm, p = 800 kg/m3 (e) r=1 cm, h = 145 cm, p = 1000 kg/m3