Recent content by 1010

  1. 1

    "Why Do Scientists Measure Reaction Rate?

    Homework Statement Why do scientists take the rate of a reaction at the beginning of an experiment? Homework Equations The Attempt at a Solution I would say because the amount of the reactants and present conditions are already known. But, there is a hint that says "think slow...
  2. 1

    Why Is µ Equal to tan θ in Friction Calculations?

    Homework Statement Deriv µs = tan θ For when a block is put on a wooden plank and the plank is lifted at one side. Homework Equations tan = sin/cos Ff = µFn The Attempt at a Solution Ff = µFn -mgsinθ= µ (-mgcosθ) µ =(-mgsinθ) /(-mgcosθ) µ = tan θ Where i am confused is why Ff...
  3. 1

    How Do Applied and Frictional Forces Compare in a Constant Speed Scenario?

    Homework Statement A toy duck waddles across the floor at constant speed. 1) How do the magnitubes of Fapplied and Ffriction compare? 2) If the coefficient of friction is 0.15, what is the maximum forward accelereation the duck can give itself? Homework Equations Ff = coefficient of...
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