 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
 | Leonard Marshall - 1883 - 212 pages
...equal to abc 6. Prove that Qa- - 462 : 15a2 - 31a6 + 1462 : : 15a2 + Зla6 + 1462 : 25a2 - 4962. 7. The pressure of the wind on a plane surface varies...wind's velocity. The pressure on a square foot is 1 Ib. when the wind is moving at a rate of 15 miles per hour. Find the velocity of the wind when the... | |
 | Leonard Marshall - 1883 - 184 pages
...equal to a 6 с 6. Prove that 9a2- 462 : 15a* - Зla6 + 146* : : l5a' + Зla6 + 146s : 25a2 - 4962. 7. The pressure of the 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. when the wind is moving at a rate of 15 miles... | |
 | Woolwich roy. military acad - 1884 - 148 pages
...the terms. 11. Explain what is meant by one quantity varying jointly as two others. 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 lb. when the wind is moving at the rate of 15 miles... | |
 | Henry Sinclair Hall, Samuel Ratcliffe Knight - Algebra - 1885 - 412 pages
...of the areas of two circles whose diameters are l£, and 2 inches respectively. 22. The pressure of wind on a plane surface varies jointly as the area...wind's velocity. The pressure on a square foot is 1 Ib. when the wind is moving at the rate of 15 miles per hour; find the velocity of the wind when... | |
 | James Morford Taylor - Algebra - 1889 - 340 pages
...while x varies as z2, and у varies inversely as и ; show that и varies as г. 12. The pressure of wind on a plane surface varies jointly as the area...wind's velocity. The pressure on a square foot is i Ib. when the wind is moving at the rate of 15 miles per hour. Find the velocity of the wind when... | |
 | E. J. Brooksmith - Mathematics - 1889 - 356 pages
...the terms. n. Explain what is meant by one quantity varying jointly as two others. The pressure of wind on a plane surface varies jointly as the area...wind's velocity. The pressure on a square foot is 1 Ib. when the wind is moving at the rate of 15 miles per hour. Find the velocity of the wind when... | |
 | Queensland. Department of Public Instruction - Education - 1892 - 508 pages
...started. 5. Prove that— C (a + b + e) (ab + be + en) - abc = (a + b)(b + c) (c + a). 8. The pressure of wind on a plane surface varies jointly as the area...wind's velocity. The pressure on a square foot is l Ib. when the wind is moving at the rate of 15 miles per hour ; find the velocity of the wind when... | |
 | James Morford Taylor - Algebra - 1893 - 358 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... | |
 | Henry Sinclair Hall, Samuel Ratcliffe Knight - Algebra - 1895 - 508 pages
...are l£, and 2 inches respectively. 22. The pressure of wind on a plane surface varies jointly аз the area of the surface, and the square of the wind's velocity. The pressure on a square foot is 1 Ib. when the wind is moving at the rate of 15 miles per hour; find the velocity of the wind when... | |
 | Henry Sinclair Hall, Samuel Ratcliffe Knight - Algebra - 1897 - 548 pages
...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 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... | |
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