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Posted by on Wednesday, November 7, 2012 at 9:43pm.

A sample of an unknown material appears to weigh 295 N in air and 165 N when immersed in alcohol of specific gravity 0.700.
(a) What is the volume of the material?
___________m^3

(b) What is the density of the material?
____________ kg/m3

I am getting the wrong answer. Can you please check my work? My answer is off by a multiple of ten.

  • Intro to Physics - , Wednesday, November 7, 2012 at 9:46pm

    This is what I have so far. My answer is wrong, it is off by a multiple of 10
    295N-165N=130N

    F=pVg
    130N=(.700)V(9.8m/s^2)
    V=18.93

    F=mg
    295N=m(9.8)
    m=30.10kg

    pV=m
    p(18.93)=30.10
    p=1.59kg/m^3

  • Intro to Physics - , Tuesday, November 13, 2012 at 10:26pm

    You have to divide the volume by 1000

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