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77_Physics ProblemsTechnical Physics

77_Physics ProblemsTechnical Physics - 78 Vectors P3.50 a =...

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78 Vectors P3.32 (a) 4.47 m at 63.4 ° ; (b) 8.49 m at 135 ° P3.50 a b = = 5 00 7 00 . , . P3.34 42.7 yards P3.52 2 1 1 tan F H G I K J n P3.36 4.64 m at 78.6 ° P3.54 25.4 s P3.38 (a) 10.4 cm; (b) 35.5 ° P3.56 (a) 7.17 km; (b) 6.15 km P3.40 1 43 10 4 . × m at 32.2 ° above the horizontal P3.58 7.87 N at 97.8 ° counterclockwise from a horizontal line to the right P3.42 + = 220 57 6 227 ± . ± i j paces at 165 ° P3.60 2 00 . ± m s b g j ; its velocity vector P3.44 (a) 3 12 5 02 2 20 . ± . ± . ± i j k + e j km; (b) 6.31 km P3.62 (a) 10 0
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