 | Edward Lee Hancock - 1915 - 472 pàgines
...260. Given that the angle which the sail makes with the direction of motion of the ice boat is 30°, the angle which the direction of the wind makes with the direction of the boat's motion is 45°, the area of the sail is 50 sq. ft., the resistance of the ice to the boat's... | |
 | William Harvey Tschappat - 1917 - 886 pàgines
...lies in a direction oblique to the front of the battery, the parallax is equal to the normal parallax multiplied by the cosine of the angle which the direction of the point makes with the normal to the battery front The parallax has been calculated for different ranges... | |
 | John Harold Morecroft - 1921 - 954 pàgines
...incoming waves, is equal to that which would flow, were its plane parallel to the direction of the waves, multiplied by the cosine of the angle which the direction of the waves makes with the plane of the coil. In our case, therefore, we have: i\ = Im cos a sin wt ............... | |
 | John Harold Morecroft - 1921 - 958 pàgines
...incoming waves, is equal to that which would flow, were its plane parallel to the direction of the waves, multiplied by the cosine of the angle which the direction of the waves makes with the plane of the coil. In our case, therefore, we have : z'i = Im cos a sin wt (53)... | |
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If foot for each degree of Fahrenheit. If a wind blows with or against the movement of the sound, its velocity must be added or subtracted. If it blows obliquely, the correction will evidently equal its velocity multiplied by the cosine of the angle which... 
