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  1. This is the discography of Hong Kong actor and singer Ekin Cheng . Note: English titles of Songs and Albums in italic indicates the name is simply a translation of the Chinese title as no official English title exists.

  2. The speed at which the individual crests and troughs of a plane wave (a wave filling the whole space, with only one frequency) propagate is called the phase velocity vp. A physical signal with a finite extent (a pulse of light) travels at a different speed.

  3. The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. At 20 °C (68 °F), the speed of sound in air is about 343 m/s (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn ), or 1 km in 2.91 s or one mile in 4.69 s.

  4. en.wikipedia.org › wiki › WikipediaWikipedia - Wikipedia

    Wikipedia [c] is a free content online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and the wiki software MediaWiki.

  5. Enrique Miguel Iglesias Preysler ( Spanish pronunciation: [enˈrike miˈɣel iˈɣlesjas ˈpɾejsleɾ]; born 8 May 1975) is a Spanish singer and songwriter. He started his recording career in the mid-1990s on the Mexican label Fonovisa and became the bestselling Spanish-language act of the decade.

  6. The three laws of motion were first stated by Isaac Newton in his Philosophiæ Naturalis Principia Mathematica ( Mathematical Principles of Natural Philosophy ), originally published in 1687. [3] Newton used them to investigate and explain the motion of many physical objects and systems.

  7. Szczęsny conceded a penalty and was sent off in a 4–1 Champions League home win against Galatasaray on 1 October 2014 for a professional foul on Burak Yılmaz. [45] On 1 January 2015, Szczęsny made errors leading to both goals in Arsenal's 2–0 defeat at Southampton.

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