Question

A graduated cylinder filled with water rests upside down in a container of water at 0 C. The water is 7.00 cm deep. Attached to the base of the cylinder is a small ring (but since the cylinder is upside down, the ring is at the highest elevation, available for grabbing). The base of the cylinder has mass 10.0 grams with ring included. The cylinder itself has radius 3.00 cm, height 40.0 cm, and mass 100.0 grams (including the base and ring). Bridgette has a scale that can read hanging weight (but, as so often happens, reads in grams instead of Newtons). She hooks the scale to the ring on the bottom of the cylinder and lifts, so that the base of the cylinder lifts 5.00 cm, but the other end of the cylinder remains beneath the surface of the water. She is amazed that the cylinder remains full of water, seemingly all the way to the base. What is the reading on the scale? ;) (The mass density of the cylindrical part of the graduated cylinder is 1.00 grams per cm3)

Answer 1

ng geven dala . . 7 cm deep reidis - 3cm height = 40cm mass=loglems mass: 100g ( baget ring.) cylinder lifts 5cm mass density = 1. glam/em3 20m of the cyluider is immersed in water Tofae volume of the cylinder = 1782h - 71x3840 a = 1130.97 Cory volume immersed in water = 182x2 23679 cm3 Buoyant force on the cylinder 2 36 70x9 1000 net dowon Lozand boree 2 (1130.97+361);- 36719 2.1117.89 1000 Fole alling on the scale.) the scale reade - in gm F 2mg N. mis kg. - 9 =9.8m2 Scale reads 1117.889 m