72 15 l hn 975x10 3 10998 107

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Unformatted text preview: WB Rs = 2 [14.1 − 13.3] 1.16 + 1.07 = 0.7 or 0.72 (b) 2 points for setup, 1 point for answer, ‐0.5 for sig figs αC ,B = ( tR )C − tM ( t R ) B − tM = 14.1 − 3.1 = 1.08 ( 0.926 also acceptable ) 13.3 − 3.1 (c) 2 points for setting up calculation for N2, 1 point for performing N2 calculation (sig figs not important here), 1 point for setting up column length, 1 point for answer, ‐0.5 for sig figs in final answer ( Rs )1 ( Rs )2 = N1 2534 N2 N2 = 0.72 1.5 2 ⎡ ⎤ ⎢ 2534 ⎥ ⎥ = 10998 N2 = ⎢ ⎢ ⎛ 0.72 ⎞ ⎥ ⎢ ⎜ 1.5 ⎟ ⎥ ⎠⎦ ⎣⎝ ( ) ( L = HN = 9.75x10-3 (10998 ) = 107 cm 1x102 and 1.1x102 also acceptable ) (d) 2 points for setup, 1 point for answer, ‐0.5 for sig figs 2 ( tR )1 (...
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