September 8, 2000 - New England Consortium

61. Spherical particles of a protein of density 1.8 g/cm3 are shaken up in a solution of 20°C water. The solution is allowed to stand for 1.0 h. If the depth of water in the tube is 5.0 cm, find the radius of the largest particles that remain in solution at the end of the hour. 62. A hypodermic needle is 3.0 cm in length and 0.30 mm in diameter. ................
................