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A United States Navy Aviation boatswain's mate tests the specific gravity of JP-5 fuel. Relative density, also called specific gravity, [1] [2] is a dimensionless quantity defined as the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material.
The service is designed with a user interface that allows users to explore songs and music videos on YouTube based on genres, playlists, and recommendations. In April 2023, the service expanded its offerings to include support for podcasts. [2] YouTube Music also features a premium tier that provides several benefits to subscribers.
In other words, the "buoyancy force" on a submerged body is directed in the opposite direction to gravity and is equal in magnitude to B = ρ f V g . {\displaystyle B=\rho _{f}Vg.\,} The net force on the object must be zero if it is to be a situation of fluid statics such that Archimedes principle is applicable, and is thus the sum of the ...
YouTube has also presented advocacy campaigns through special playlists featured on YouTube Kids, including "#ReadAlong" (a series of videos, primarily featuring kinetic typography) to promote literacy, [12] "#TodayILearned" (which featured a playlist of STEM-oriented programs and videos), [13] and "Make it Healthy, Make it Fun" (a ...
On desktop, users choose between "Auto" and a specific resolution. [46] It is not possible for the viewer to directly choose a higher bitrate (quality) for any selected resolution. Since 2009, viewers have had the ability to watch 3D videos. [47] In 2015, YouTube began natively supporting 360-degree video. Since April 2016, it allowed live ...
Gravity is usually measured in units of acceleration.In the SI system of units, the standard unit of acceleration is metres per second squared (m/s 2).Other units include the cgs gal (sometimes known as a galileo, in either case with symbol Gal), which equals 1 centimetre per second squared, and the g (g n), equal to 9.80665 m/s 2.
Songs about school have probably been composed and sung by students for as long as there have been schools. Examples of such literature can be found dating back to Medieval England. [1] The number of popular songs dealing with school as a subject has continued to increase with the development of youth subculture starting in the 1950s and 1960s.
YouTube was founded as a video sharing platform in 2005 and is now the most visited website in the US as of 2019. [1] Almost immediately after the site's launch, educational institutions, such as MIT OpenCourseWare and TED , were using it for the distribution of their content.