 The pressure of wind on a plane surface varies jointly as the area of the surface, and the square of the wind's velocity. The pressure on a square foot is 1...  An Academic Algebra - Page 297by James Morford Taylor - 1893 - 338 pagesFull view - About this book
 | Herbert E. Cobb - Mathematics - 1911 - 296 pages
...SOLUTION. v <x hr * . v = khr*. 6284 = k . 20 . 10*. k = 3.142. v = 3.142 x 8 x 6 2 = 904.9 cu. in. 2. The pressure of wind on a plane surface varies jointly as the area of the surface and the square of the velocity of the wind. If the pressure on 100 sq. ft. is 125 Ib. when the wind is blowing 16 mi. per... | |
 | John Charles Stone, James Franklin Millis - Algebra - 1911 - 698 pages
...seconds ? In 60 seconds ? • 12. The pressure of the wind against a flat surface, such as a wall, varies jointly as the area of the surface and the square of the velocity of the wind in miles per hour. The pressure on one square foot when the velocity is 20 miles... | |
 | Frederick Howland Somerville - Algebra - 1913 - 458 pages
...days will it take 4 men to earn $ 100 when 6 men working 9 days earn $ 135 ? 20. The pressure of the wind on a plane surface varies jointly as the area...wind's velocity. The pressure on a square foot is one pound when the wind is blowing at a rate of 15 miles an hour. What will be the velocity of a wind... | |
 | Horace Wilmer Marsh - Mathematics - 1913 - 460 pages
...area of 64 square inches? 51. Wind Pressure on a Surface. The pressure of the wind perpendicular to a plane surface varies jointly as the area of the surface and the square of the wind's velocity. Under a velocity of 16 miles per hour, the pressure on 1 square foot is 1 pound. What is the velocity... | |
 | Ernst Rudolph Breslich - Logarithms - 1917 - 408 pages
...varies jointly as the area of the bottom and the depth of the water. 3. The pressure of wind on a wall varies jointly as the area of the surface and the square of the velocity of the wind. 9. The volume of a cylinder varies jointly as the area of the base and altitude.... | |
 | Henry Sinclair Hall - 1918 - 382 pages
...equal to the sum of the areas of two circles whose diameters are 1£ and 2 inches respectively. 22. The pressure of wind on a plane surface varies jointly...hour: find the velocity of the wind when the pressure ou a square yard is 16 pounds. 23. The value of a silver coin varies directly as the square of its... | |
 | Henry Sinclair Hall, Samuel Ratcliffe Knight - Algebra - 1918 - 614 pages
...equal to the sum of the areas of two circles whose diameters are 1J and 2 inches respectively. 22. The pressure of wind on a plane surface varies jointly...: find the velocity of the wind when the pressure ou a square yard is 16 pounds. 23. The value of a silver coin varies directly as the square of its... | |
 | Herbert Edwin Hawkes, William Arthur Luby, Frank Charles Touton - Algebra - 1919 - 536 pages
...long vibrates once in 1 second, find the time of one vibration of a pendulum 81 centimeters long. 14. The pressure of wind on a plane surface varies jointly...the square of the wind's velocity. The pressure on 1 square foot is .9 pound when the rate of the wind is 15 miles per hour. Find the velocity of the... | |
 | Matilda Auerbach, Charles Burton Walsh - Geometry, Plane - 1920 - 408 pages
...twelfth second? (e) How long will it take a body to fall a mile? 417. The pressure of wind on a flat surface varies jointly as the area of the surface and the square of the wind's velocity. (a) State this fact as a formula. (6) The pressure of the wind on 1 sq. ft. is 0.9 Ib. wien the velocity... | |
 | Julius Lederer Neufeld - Algebra - 1920 - 412 pages
...pressure 18? 4. If y varies inversely as a:2 — 1, and y = — 5 when x = 4, find x when y = — 15. 5. The pressure of wind on a plane surface varies jointly as the area of surface, and the square of the wind's velocity. The pressure on a square foot is 1 pound when the wind... | |
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