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The 5-inch (127 mm)/54-caliber (Mk 45) lightweight gun is a U.S. naval artillery gun mount consisting of a 5 in (127 mm) L54 Mark 19 gun on the Mark 45 mount. [1] It was designed and built by United Defense, a company later acquired by BAE Systems Land & Armaments, which continued manufacture.
10 meters – wavelength of the highest shortwave radio frequency, 30 MHz; 10.2 meters – length of the Panzer VIII Maus, the world's largest tank; 12 meters – height of the Newby-McMahon Building, the world's littlest skyscraper; 23 meters – height of Luxor Obelisk, located in the Place de la Concorde, Paris, France
The cumulative vertical axis forces acting upon his body make him momentarily 'weigh' many times more than normal. In an airplane, the pilot's seat can be thought of as the hand holding the rock, the pilot as the rock. When flying straight and level at 1 g, the pilot is acted upon by the force of gravity.
This differs from many older systems in which the ratio of different units varied. For example, 12 inches is one foot, but the larger unit in the same system, the mile is not a power of 12 feet. It is 5,280 feet – which is hard to remember for many. [5]: 17
In any system of measurement, units for many physical quantities can be derived from base units. Table 2 offers a sample of derived Planck units, some of which are seldom used. As with the base units, their use is mostly confined to theoretical physics because most of them are too large or too small for empirical or practical use and there are ...
5 4, a time signature containing five quarter notes per measure, see quintuple meter; Just major third "5/4", a song (with the above time signature) by Sunny Day Real Estate from their 1995 album Sunny Day Real Estate "5/4" (song), a song by Gorillaz from their 2001 album Gorillaz "5/4", an instrumental song by Rammstein from their 2002 single ...
In January 1939 a specification was issued for a gun no heavier than 5.5 tons to replace the 6 inch 26 cwt howitzers in use with most medium batteries. For the desired range of 16,000 yards (15 km) ballistic studies recommended making a new calibre of 5.5 inches.
Muzzle velocities high enough to consistently hit a 100×100 mm (15.5-sq.in.or 3.94 inches square) target at 100 meters. Barrel length of 6 inches (152 mm) to achieve the required muzzle velocities. Felt recoil impulse should not exceed that of a hot .45 ACP +P load shot from an all-steel gun.