In a practical experiment to determine a physical quantity (L) by adding two physical quantities L, and L2 given that L = (5.2 +0.1) cm and L2 = (5.8 30.2) cm.
Find the value of (L) and the relative error in measuring it.
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Aswimmer is determined to cross a river that flows due south with a strong current. initially, the swimmer is on the west bank desiring to reach a camp directly across the river on the opposite bank. in which direction shoud the swimmer head? a. the swimmer should swim southeast. b. the swimmer should swim south. c. the swimmer shuold swim northeast. d. the swimmer should swim due north. e. the swimmer should swim due east.