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OpenStudy (anonymous):
The density of mercury is 13.6 × 103 kg m–3. The pressure difference between the bottom and the top of a column of mercury is 100 kPa. What is the height of the column? A 0.75 m B 1.3 m C 7.4 m D 72 m
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OpenStudy (jfraser):
100kPa is almost exactly 1atmosphere, which describes a column of mercury 760mm tall
OpenStudy (anonymous):
pressure diff. =h(rho)g,where rho=density of substance
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