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1. For the beam and loading shown, consider section n-n and determine (a) the largest shearing stress in that section, (b) the shearing stress at point a. 15 kips 20 kips 15 kips 0.6 in. 10 in. 1 ft 1 in. a in 10 in. in 0.375 in. - 2 ft 2 ft 2 ft 2 ft 0.6 in.