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In other words, immediately after firing, the momentum of the firearm is equal and opposite to the momentum of the projectile. Since momentum of a body is defined as its mass multiplied by its velocity, we can rewrite the above equation as: m f v f + m p v p = 0 {\displaystyle m_{\text{f}}v_{\text{f}}+m_{\text{p}}v_{\text{p}}=0} where:
Firefighting jargon includes a diverse lexicon of both common and idiosyncratic terms. One problem that exists in trying to create a list such as this is that much of the terminology used by a particular department is specifically defined in their particular standing operating procedures, such that two departments may have completely different terms for the same thing.
Some selective fire weapons utilize burst fire mechanisms to limit the maximum or total number of shots fired automatically in this mode. The most common limits are two or three rounds per pull of the trigger. Selector: The part of a selective fire weapon that allows the user to choose their desired mode of firing.
A Dictionary of Military Architecture: Fortification and Fieldworks from the Iron Age to the Eighteenth Century by Stephen Francis Wyley, drawings by Steven Lowe; Victorian Forts glossary Archived 2016-03-04 at the Wayback Machine. A more comprehensive version has been published as A Handbook of Military Terms by David Moore at the same site
This is a list of Latin words with derivatives in English (and other modern languages). Ancient orthography did not distinguish between i and j or between u and v. [1] Many modern works distinguish u from v but not i from j. In this article, both distinctions are shown as they are helpful when tracing the origin of English words.
Ready to fire position. Bolt is locked to barrel, both are fully forward. Upon firing, bolt and barrel recoil backwards a short distance while locked together. Near the end of the barrel travel, the bolt and barrel unlock. The barrel stops, but the unlocked bolt continues to move to the rear, ejecting the empty shell and compressing the recoil ...
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Also referred to as air attack. The use of aircraft in support of ground resources to combat wildfires, often most effective in initial attack in light fuels. air drop The delivery of supplies or fire retardant from the air. Supplies can be dropped by parachute, while retardant is generally released in a single drop of one or more trails, the size of which is determined by the wind and the ...