Physics: Young Modulus Table

timer Asked: Jul 7th, 2015

Question description

  1. Briefly describe how an optical lever works.
  2. Calculate Young's Modulus from the following data:
    Load on the hanger (gm)Readings of the scale (cm)Change in the reading
    of the scale when the
    load is increased
    by M = _____ gm
    Load increasing (si)Load decreasing (sd)Average s
    300-6.2-6.3x1 = s4 - s1 =
    500-3.9-4.0x2 = s5 - s2 =
    700-1.7-1.8x3 = s6 - s3 =
    11002.72.6Average x =
    Average diameter of the wire = 0.036 cm
    Average length of the wire = 96.7 cm
    Average diameter of the cylinder = 1.24 cm
    Average distance between the mirror and the scale = 84.6 cm
    By what value is the load M changed when you are calculating the values of xi?
    In answer, give s = {s1, s2, s3, s4, s5, s6}
    In answer, give x = {x1, x2, x3}

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