7. 1. A hollow brass cylinder is weighed on a pan balance which reads in kg. The

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7. 1. A hollow brass cylinder is weighed on a pan balance which reads in kg. The scale reading is 5.56 kg. The brass cylinder is now removed from the scale and is replaced by a beaker of liquid of density 1.56

A hollow brass cylinder is weighed on a pan balance which reads in kg. The scale reading is 5.56 kg. The brass cylinder is now removed from the scale and is replaced by a beaker of liquid of density 1.56 A ~ 103 kg m-3; the scale now reads 17.50 kg. The brass cylinder is then suspended from a thread as shown, and is lowered into the liquid until it is completely immersed (but does not touch the bottom of the cylinder). The reading on the pan balances increases from 17.50 kg to 20.28 kg when the cylinder is immersed in the liquid. The density of brass is 8.47 A~ 103 kg m-3. Calculate the volume of the metal in the cylinder. Calculate the upward thrust (buoyant force) exerted on the cylinder when it is completely immersed in the liquid. Calculate the volume of the hollow space in the cylinder.

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