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How many milliliters of a 5.0 M H2SO4 stock solution would you need to prepare 123.5 mL of 0.48 M H2SO4?
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A 56 kg rock climber is climbing a "chimney" between two rock slabs as shown in the figure. The static coefficient of friction
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Answers (2)
force of push = (mg)/(u1+u2), so (49*9.8)/(1.2+.8)=240.1N fraction of weight= (u1)/(u1+u2),so (1.2)/(1.2+.8)=.6
Push against the rock= (mg)\(u1+u2)
