p01_028 - /. 19 ≈ 24 rises then under normal...

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28. In the simplest approach, we set up a ratio for the total increase in horizontal depth x (where ∆ x =0 . 05 m is the increase in horizontal depth per step) x = N steps x = µ 4 . 57 0 . 19 (0 . 05) = 1 . 2m . However, we can approach this more carefully by noting that if there are N =4 . 57
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Unformatted text preview: /. 19 ≈ 24 rises then under normal circumstances we would expect N − 1 = 23 runs (horizontal pieces) in that staircase. This would yield (23)(0 . 05) = 1 . 15 m, which – to two signiFcant Fgures – agrees with our Frst result....
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