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Q. A pendulum clock with a brass suspension system m is calibrated so that its period is 1s. at 11*C (degree Celsius). If the temperature increases to 44oC, by how much does period change?

Q. Antarctica is roughly semicircular, with the radius of about r = 1900 km. The average thickness of its ice cover is about h = 2700 m. How numerous cubic centimeters of ice does Antarctica contain?

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