A recent high-precision determination of g has a quoted error of 6 partsin 10°. Estimate the increase in height at the Earth's surface which gives achange in g equal to this error. If the dependence of g on geographicallatitude at sea level is given by8 = 80(1 + Bsin? 4),where o is the latitude and B is a dimensionless constant with a valuc of0.0053, estimate the northward displacement near latitude 45° which givesa change in g equal to the quoted error.

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