 | Francis Bashforth - 1879 - 76 páginas
...more trustworthy results obtained with higher velocities. If these values of Kv may be relied upon, the resistance of the air varies as the square of the velocity for velocities 430 to 830 fs, and as the cube of the velocity from 830 to 1000 fs As the resistance... | |
 | De Volson Wood - 1882 - 276 páginas
...the plane xy will be a parabola, on xz also a parabola. 10. If a body is projected into the air, and the resistance of the air varies as the square of the velocity ; required the equation of the curve. (The final integrals for this problem cannot be found. Approximate... | |
 | Edward Albert Bowser - 1885 - 324 páginas
...greatly increases the transporting power of water. The pressure of a current of water against any surface varies as the square of the velocity and as the area of the surface f (Art. 97). But in similar figures, surfaces vary as the squares of the diameters ; hence, the pressure... | |
 | Francis Bashforth - 1890 - 342 páginas
...the shot is supposed to be 9'15 instead of 9'2 inches1. The elevation of the gun is 40°. Although the resistance of the air varies as the square of the velocity from 2375 to 1300 fs, it seems desirable to divide the corresponding trajectory into two arcs at least,... | |
 | 1907 - 816 páginas
...overcome by making the body of such dimensions and shape that the air will offer the least resistance As the resistance of the air varies as the square of the velocity, it would seem that the error due to this resistance would become quite appreciable, but as a matter... | |
 | Richard De Villamil - 1917 - 262 páginas
...2 - . — .r = KSV2a ; where a = distance from centre of the plate to the vertical axis B. 2. That the resistance of the air varies as the square of the velocity. We also see : — " The long arm of the whirling machine is not perfectly rigid, and gives way under... | |
 | Herman Shaw - 1919 - 288 páginas
...which limits the ultimate velocity of the moving body. It has been experimentally established that the resistance of the air varies as the square of the velocity, over almost the entire range of speed likely to be reached in flight, though for very low speeds the... | |
 | 1915 - 738 páginas
...bullet is air resistance. This resistance increases with, but not as, the velocity. At 1,300 fs velocity the resistance of the air varies as the square of the velocity. The power of increase in resistance diminishes slightly as the bullet increases in speed, being about... | |
 | John Robertson Dunlap, Arthur Van Vlissingen, John M. Carmody - 1904 - 1346 páginas
...connection with aerial navigation. Its use has already demonstrated the correctness of the law that the resistance of the air varies as the square of the velocity, thus confirming the researches of Le Dantec, Canovetti and others. The successful solution of the problem... | |
 | James Clerk Maxwell - 1990 - 1068 páginas
...motion of elongated projectiles': 417, that: 'According to Newton's law [Principia, Book II, Prop. X], the resistance of the air varies as the square of the velocity. ...But in spite of grave doubts respecting the accuracy of Newton's law, it has been adopted by most... | |
| |
Remembering that the resistance of the air varies as the square of the velocity, it might easily be shown that the strength should be at least eight times, instead of twice, as great. Passing to the question of power. The soaring of birds is a most important... 
