25 m/s 6) A water fountain has a nozzle of diameter 1.0 cm. It has a flow rate of 40 litres/minute, and is being directed vertically upward. How high above the nozzle does the water reach? Ignore any interference between rising and falling water. [1 L = 1073 m', density of water is 103 kg/m'.] (Answer: 3.68 m) 7) Canadians have devised a new game to augment their skill at curling! A series of elastic collisions occur between 6 'rocks' of mass m, 2m, 4m, 8m, 16m and 32m spaced out on a frictionless track. The game