 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 Ib.  Elementary Algebra - Page 335by Frederick Howland Somerville - 1908 - 407 pagesFull view - About this book
 | James Morford Taylor - Algebra - 1900 - 504 pages
...will fall through 144 feet in 3 seconds. Find how far it will fall in 2 seconds. 17. The pressure of wind on a plane surface varies jointly as the area...wind's velocity. The pressure on a square foot is 1 pound when the wind is moving at the rate of 15 miles per hour. Find the velocity of the wind when... | |
 | Edward Rutledge Robbins, Frederick Howland Somerville - Algebra - 1904 - 194 pages
...to the sum. of two circles whose radii are 5 aud 12 respectively. 18. The pressure of the wind upon a plane surface varies jointly as the area of the...wind's velocity. The pressure on a square foot is 1 pound when the wind is blowing at the rate of 15 miles per hour. Find the velocity of the wind when... | |
 | Edward Rutledge Robbins, Frederick Howland Somerville - Algebra - 1904 - 188 pages
...to the sum of two circles whose radii are 5 and 12 respectively. 18. The pressure of the wind upon a plane surface varies jointly as the area of the surface and the square of the wind1s velocity. The pressure on a square foot is 1 pound when the wind is blowing at the rate of 15... | |
 | William Ernst Paterson - Algebra - 1908 - 614 pages
...Find the ratio of their thicknesses, if the value of the first be four times that of the second. 22. The pressure of the wind on a plane surface varies...jointly as the area of the surface and the square of the velocity of the wind. It is found that the pressure on a square foot is l Ib., when the wind is moving... | |
 | Herbert Edwin Hawkes, Frank Charles Touton, William Arthur Luby - Algebra - 1910 - 368 pages
...Find the length of a pendulum which vibrates once in 2 seconds. 24. The pressure of wind on a flat (plane) surface varies jointly as the area of the...the square of the wind's velocity. The pressure on one square foot is .9 pounds when the wind is moving at the rate of 15 miles per hour. Find the velocity... | |
 | Herbert Edwin Hawkes, William Arthur Luby, Frank Charles Touton - Algebra - 1911 - 288 pages
...the length of a pendulum which vibrates once in 2 seconds ; once in 5 seconds. 24. The pressure of wind on a plane surface varies jointly as the area...the square of the wind's velocity. The pressure on 1 square foot is .9 pounds when the rate of the wind is 15 miles per hour. Find the velocity of the... | |
 | Herbert E. Cobb - Mathematics - 1911 - 298 pages
...hr3. v = khr3. . 6284 = /fc.20-102. k - 3.142. » = 3.142 x 8 x 62 = 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
...whose diameters are 6 and 8 inches respectively. 16. The intensity of light varies inversely as the square of the distance from the source. How far from...pressure on a square yard is 81 pounds ? CHAPTER XXV PROGRESSIONS ARITHMETICAL PROGRESSION 398. A series is a succession of terms formed in accordance with... | |
 | 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... | |
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