 | Henry William Jeans - 1873 - 292 páginas
...height and distance of the steeple. Ans. Height, 210-4; distance, 250'8 feet. [30]. (Fig. 32.) At B, the top of a castle which stood on a hill near the sea-shore, the angle of depression, HBS, of a ship at anchor was 4° 52', and at E, the bottom of the castle, its depression, NES, was... | |
 | Benjamin Greenleaf - 1876 - 204 páginas
...station, and its height. Ans. Distance, 24840 yanLs; height, 1447 yards. 10. From the top of a light-house the angle of depression of a ship at anchor was observed to be 4° 52', from the bottom of the light-house the angle was 4° 2'. Required the horizontal distance of the vessel,... | |
 | Charles Sumner Slichter - 1914 - 520 páginas
...ir/4, the distance is 10; find the equation of motion. 30. From the top of a lighthouse 60 feet high the angle of depression of a ship at anchor was observed to be 4° 52', from the bottom of the lighthouse the angle was 4° 2'. Required the horizontal distance from the lighthouse... | |
 | Royal Statistical Society (Great Britain) - 1845 - 786 páginas
...angled plane triangle, which contain the right angle, are 242-7 and 321-2; required the hypothenuse. 13. At the top of a castle which stood on a hill near the sea-shore, the angle of depression of a ship's hull at anchor was 4° 52', at the bottom of the castle the angle of depression was 4° 2'.... | |
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Required the horizontal distance of the mountain-top from the nearer station, and its height. Ans. Distance, 24840 yards; height, 1447 yards. 10. From the top of a light-house the angle of depression of a ship at anchor was observed to be 4° 52', from... 
