Revolutions per minute

Revolutions per minute (abbreviated rpm, RPM, rev/min, r/min) is a measure of the frequency of rotation, specifically the number of rotations around a fixed axis in one minute. It is used as a measure of rotational speed of a mechanical component. In the French language, tr/mn (tours par minute) is the common abbreviation. The German language uses the abbreviation U/min or u/min (Umdrehungen pro Minute).

International System of Units

According to the International System of Units (SI), rpm is not a unit. This is because the word revolution is a semantic annotation rather than a unit. The annotation is instead done as a subscript of the formula sign if needed. Because of the measured physical quantity, the formula sign has to be f for (rotational) frequency and ω or Ω for angular velocity. The corresponding basic SI derived unit is s−1 or Hz. When measuring angular speed, the unit radians per second is used.

Here the sign ↔ (correspondent) is used instead of = (equal). Formally, hertz (Hz) and radian per second (rad/s) are two different names for the same SI unit, s−1. However, they are used for two different but proportional ISQ quantities: frequency and angular frequency (angular speed, magnitude of angular velocity). The conversion between a frequency f (measured in hertz) and an angular velocity ω (measured in radians per second) are:

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This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/Revolutions_per_minute

RPM (disambiguation)

RPM is an abbreviation of revolutions per minute, a measure of rotation frequency.

RPM may also refer to:

Business

  • Revenue per mille (thousand), related to cost per mille, in advertising
  • Resale price maintenance, in economics
  • RPM International Inc, a chemical sealant company
  • RPM (magazine), a defunct Canadian music and radio industry magazine
  • RPM Records (USA), USA
  • RPM Records (UK), subsidiary of Cherry Red
  • RPM Mortgage, Inc., Mortgage Banking - USA
  • Radio Programas de México, Mexican radio program syndicator and station owner

    • Computers

  • Ranish Partition Manager
  • RPM Package Manager, a software package manager, originally Red Hat Package Manager
  • Route Processing Module (Cisco: Partial list of hardware products), a hardware routing application used to route layer 3 traffic across the internet
  • Rights Protection Mechanism, for the new Top-Level Domains (TLDs)

    • Film and TV

  • RPM (Cars), a character in the movie Cars
  • RPM (TV series), a long-running Australian motorsport show on Network Ten
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    This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/RPM_(disambiguation)

    LP record

    The LP (long play), or 33 1⁄3 rpm microgroove vinyl record, is a format for phonograph (gramophone) records, an analog sound storage medium. Introduced by Columbia Records in 1948, it was soon adopted as a new standard by the entire record industry. Apart from relatively minor refinements and the important later addition of stereophonic sound capability, it has remained the standard format for vinyl albums.

    Format advantages

    At the time the LP was introduced, nearly all phonograph records for home use were made of an abrasive (and therefore noisy) shellac compound, employed a much larger groove, and played at approximately 78 revolutions per minute (rpm), limiting the playing time of a 12-inch diameter record to less than five minutes per side. The new product was a 12- or 10-inch (30 or 25 cm) fine-grooved disc made of vinyl and played with a smaller-tipped "microgroove" stylus at a speed of 33 1⁄3 rpm. Each side of a 12-inch LP could play for more than 20 minutes. Only the microgroove standard was truly new, as both vinyl and the 33 1⁄3 rpm speed had been used for special purposes for many years, as well as in one unsuccessful earlier attempt to introduce a long-playing record for home use.

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    This page contains text from Wikipedia, the Free Encyclopedia - https://wn.com/LP_record

    Podcasts:

    rpm

    ALBUMS

    Ø = { }

    R.P.M.

    ALBUMS

    Beyond the Groove

    Released 1980

    R.P.M.

    ALBUMS

    Ratpack v Magika Present Blackmagik – The Old Skool Masters Round 2

    Released 1998

    Time Machine

    Released 1998

    2000

    Released 1996

    Headz 2A

    Released 1996

    Some Scientific Abstract Type Shit

    Released 1995

    The Story of MoWax

    Released 1995

    Headz

    Released 1994

    Royaltie$ Overdue

    Released 1994

    Food of My De-Rhythm

    Released 1993

    Dub Be Good to Me

    Released 1990

    RPM

    ALBUMS

    MTV 2002

    Released 2002

    Grandes Sucessos

    Released 2001

    Rádio pirata ao vivo

    Released 1986

    Revoluções por minuto

    Released 1985

    Brilhantes

    Email this Page Play all in Full Screen Show More Related Videos
    PLAYLIST TIME:

    Revoluções Por Minuto

    by: RPM

    Sinais de vida no pais vizinho
    Eu já não ando mais sozinho
    Toca o telefone
    Chega um telegrama enfim
    Ouvimos qualquer coisa de Brasília
    Rumores falam em guerrilha
    Foto no jornal
    Cadeia nacional
    Viola e canto ingênuo do caboclo
    Caiu o santo do pau oco
    Foge pro riacho
    Foge que eu te acho assim
    Fulano se atirou da ponte aérea
    Não agüentou fila de espera
    Apertar os cintos
    Preparar para descolar
    Nos chegam gritos da ilha do norte
    Ensaio pra dança da morte
    Tem disco pirata
    Tem vídeo cassete até
    Agora a China bebe Coca-Cola
    Aqui na esquina cheiram cola
    Bio-degradante




    Latest News for: rpm

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    RPM Recognized as 2024 Supplier of the Year by General Motors

    PR Newswire 21 Apr 2025
    BIRMINGHAM, Mich., April 21, 2025 /PRNewswire/ -- On April 8, General Motors presented RPM with a 2024 Supplier of the Year Award at GM's 33rd annual Supplier of the Year event in Phoenix, Arizona ... — John Perkovich, President, RPM North America.
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    ESPN 20 Apr 2025
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    ESPN 19 Apr 2025
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    Williams focus on long-term progress over 2025

    ESPN 19 Apr 2025
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    Edit

    McLaren's Norris tops Saudi final practice

    ESPN 19 Apr 2025
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