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Homework Help: Stress in relation to Height

  1. Apr 8, 2009 #1
    1. The problem statement, all variables and given/known data
    The Babblers have decided to build a tower that would reach the top of Rock Candy Mountain. For brick they used large sugar cubes ( = 1500 kg/m3). The compressive strength (stress) of sugar cubes is 6.0 MPa. How tall of a tower can the Babblers build?

    2. Relevant equations
    Stress = F/A = Y(ΔL/L0)A

    3. The attempt at a solution
    I converted 6MPa to N/m2 for 6,000,000 N/m2, I just don't know how to find L. The A's cancel, leaving me with F = Y(ΔL/L0), right? Is Y = 1500 kg/m^3?
  2. jcsd
  3. Apr 8, 2009 #2
    I'm not sure you're using the right equations... the stress relationship is OK (stress = F/A), but how is this related to the height? Show an equation that can relate the height of tower to some part of the stress equation.

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