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As a numerical example, consider a fall of 20 feet that occurs with 10 feet of rope out (i.e., the climber has placed no protection and falls from 10 feet above the belayer to 10 feet below—a factor 2 fall). This fall produces far more force on the climber and the gear than if a similar 20 foot fall had occurred 100 feet above the belayer.
Leonardo da Vinci drew the Vitruvian Man within a square of side 1.83 m (6 ft 0 in) and a circle about 1.2 m (3 ft 11 in) in radius. To help compare different orders of magnitude, this section lists lengths between one meter and ten meters. Light, in vacuum, travels 1 meter in 1 ⁄ 299,792,458, or 3.3356409519815E-9 of a second.
The coefficients found by Fehlberg for Formula 2 (derivation with his parameter α 2 = 3/8) are given in the table below, using array indexing of base 1 instead of base 0 to be compatible with most computer languages:
All 2-10-10-2 locomotives have been articulated locomotives of the Mallet type. This wheel arrangement was rare. Only two classes of 2-10-10-2 locomotives have been built: the Atchison, Topeka and Santa Fe Railway's 3000 class, and the Virginian Railway's class AE. The 3000 class performed poorly, so the railroad returned them to their original ...
x, s, d, u, x 1, s 1, d 1, u 1: m [L] Image distance x', s', d', v, x 2, s 2, d 2, v 2: m [L] Object height y, h, y 1, h 1: m [L] Image height y', h', H, y 2, h 2, H 2: m [L] Angle subtended by object θ, θ o, θ 1: rad dimensionless Angle subtended by image θ', θ i, θ 2: rad dimensionless Curvature radius of lens/mirror r, R: m [L] Focal ...
The template is intended for conversion of heights specified in either metres or in feet and inches. Template parameters [Edit template data] Parameter Description Type Status Metres m metre metres meter meters The height in metres. Do not use if feet and inches are specified. Number optional Centimetres cm centimetre centimetres centimeter centimeters The height in centimetres. Do not use if ...
In physics, there are equations in every field to relate physical quantities to each other and perform calculations. Entire handbooks of equations can only summarize most of the full subject, else are highly specialized within a certain field.