13. IP The Longitude Problem In 1755, John Harrison (1693-1776) completed his fourth precision chronometer, the H4, whic

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13 Ip The Longitude Problem In 1755 John Harrison 1693 1776 Completed His Fourth Precision Chronometer The H4 Whic 1 (244.89 KiB) Viewed 23 times

13. IP The Longitude Problem In 1755, John Harrison (1693-1776) completed his fourth precision chronometer, the H4, which eventually won the celebrated Longitude Prize. (For the human drama behind the Longitude Prize, see Longitude, by Dava Sobel.) When the minute hand of the H4 indicated 10 minutes past the hour, it extended 3.0 cm in the horizontal direction. (a) How long was the H4's minute hand? (b) At 10 minutes past the hour, was the extension of the minute hand in the vertical direction more than, less than, or equal to 3.0 cm? Explain. (c) Calculate the vertical extension of the minute hand at 10 minutes past the hour.