1.A line was measured five times, the readings were: 100.08, 100.51, 100.32, 100.16, 100.22. what is the error? What is the most probable length?
2.Currently, the submarine shown has an empty ballast tank. In order to submerge to a depth of 50 feet from its present depth, how much sea water (in cubic feet) must be taken in? Assume specific gravity of 1.03 for sea water and sub is 300 feet long.
3.Water is flowing in a 6-cm diameter pipe at 20 m/s at 10?C. If the pipe enlarges to a diameter of 12-cm, calculate the reduced velocity. Also, calculate the mass flux rate and the flow rate.