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How do i work out the height of a material ?

  • 16-04-2013 5:35am
    #1
    Scaldy Ned
    Registered Users, Registered Users 2 Posts: 180 ✭✭


    If i have an alloy with a density of 6.3 g/c cm and i know that the ingot is 40mm diameter....can someone show me the formula for working out the height the ingot will be for any given weight ? for example if i want to calculate the height it should be for 1.4kg
    Thanks


Comments

  • #2
    AngryHippie
    Registered Users, Registered Users 2 Posts: 2,625 ✭✭✭AngryHippie


    H(mm)=(PI(D^2))/4*Density*9.81

    Weight=Volume*Density*g

    Volume of a cylinder is (PI*D^2)/4) * Height
    D is for Diameter, I'd us Rho for Density, but I don't have time.


  • #3
    chris85
    Registered Users, Registered Users 2 Posts: 4,502 ✭✭✭chris85


    And also dont forget to change everything to SI units.


  • #4
    gojony
    Registered Users, Registered Users 2 Posts: 69 ✭✭gojony


    h = (Weight/Density) / PI *(r^2)
    h = (1.4/0.0063)/PI*(0.04^2)
    h = 0.113m


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