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  2. Free body diagram - Wikipedia

    en.wikipedia.org/wiki/Free_body_diagram

    A free body diagram is not a scaled drawing, it is a diagram. The symbols used in a free body diagram depends upon how a body is modeled. [6] Free body diagrams consist of: A simplified version of the body (often a dot or a box) Forces shown as straight arrows pointing in the direction they act on the body

  3. Reading Township, Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Reading_Township,_Pennsylvania

    The township is located in eastern Adams County and contains the settlements of Hampton and Lake Meade.According to the United States Census Bureau, the township has a total area of 26.8 square miles (69.3 km 2), of which 26.3 square miles (68.2 km 2) is land and 0.42 square miles (1.1 km 2), or 1.60%, is water. [3]

  4. Friction - Wikipedia

    en.wikipedia.org/wiki/Friction

    Lubricated friction is a case of fluid friction where a lubricant fluid separates two solid surfaces. [9] [10] [11] Skin friction is a component of drag, the force resisting the motion of a fluid across the surface of a body. Internal friction is the force resisting motion between the elements making up a solid material while it undergoes ...

  5. Reading, Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Reading,_Pennsylvania

    Reading (/ ˈ r ɛ d ɪ ŋ / RED-ing; Pennsylvania Dutch: Reddin) is a city in and the county seat of Berks County, Pennsylvania, United States.The city had a population of 95,112 at the 2020 census and is the fourth-most populous city in Pennsylvania after Philadelphia, Pittsburgh, and Allentown.

  6. Weather radar - Wikipedia

    en.wikipedia.org/wiki/Weather_radar

    Weather radar in Norman, Oklahoma with rainshaft Weather (WF44) radar dish University of Oklahoma OU-PRIME C-band, polarimetric, weather radar during construction. Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.).

  7. NEXRAD - Wikipedia

    en.wikipedia.org/wiki/NEXRAD

    NEXRAD or Nexrad (Next-Generation Radar) is a network of 159 high-resolution S-band Doppler weather radars operated by the National Weather Service (NWS), an agency of the National Oceanic and Atmospheric Administration (NOAA) within the United States Department of Commerce, the Federal Aviation Administration (FAA) within the Department of Transportation, and the U.S. Air Force within the ...

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  9. AccuWeather - Wikipedia

    en.wikipedia.org/wiki/AccuWeather

    AccuWeather, Inc. is a private-sector American media company that provides commercial weather forecasting services. AccuWeather was founded in 1962 by Joel N. Myers, then a Pennsylvania State University graduate student working on a master's degree in meteorology. His first customer was a gas company in Pennsylvania. While running his company ...