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The volume of a n-ball is the Lebesgue measure of this ball, which generalizes to any dimension the usual volume of a ball in 3-dimensional space. The volume of a n -ball of radius R is R n V n , {\displaystyle R^{n}V_{n},} where V n {\displaystyle V_{n}} is the volume of the unit n -ball , the n -ball of radius 1 .
Regulation size and weight for a football is a circumference of 68–70 cm (27–28 in) and a weight of 410–450 g (14–16 oz). The ball is inflated to a pressure of 0.6–1.1 bars (8.7–16.0 psi) at sea level. [20] This is known as "Size 5". Smaller balls, Sizes 1, 3, and 4, are also produced for younger players or as training tools. [20]
The USBC and World Bowling promulgate bowling ball specifications. USBC specifications include physical requirements for weight (≤16 pounds (7.3 kg)), diameter (8.500 inches (21.59 cm)—8.595 inches (21.83 cm)), surface hardness, surface roughness, hole drilling limitations (example: a single balance hole including the thumb hole for "two-handed" bowlers [3]), balance, plug limitations, and ...
A volleyball is a ball used to play indoor volleyball, beach volleyball, or other less common variations of the sport.Volleyballs are spherical in shape and typically comprise eighteen nearly rectangular panels made from synthetic or genuine leather.
The International Tennis Federation (ITF) defines the official diameter as 6.54–6.86 cm (2.57–2.70 inches). Balls must have masses in the range 56.0–59.4 g (1.98–2.10 ounces). A tennis ball generally has 12 pounds per square inch (80 kPa; 0.8 atm) more of a nitrogen and oxygen mixture than the sea level ambient air pressure.
Sepak Takraw balls without synthetic rubber covering must have 12 holes and 20 intersections, must have a circumference measuring from 42 to 44 cm (16.5–17.3 in) for men or from 43 to 45 cm (16.9–17.7 in) for women, with a weight that ranges from 170 to 180 g (6.0–6.3 oz) for men or from 150 to 160 g (5.3–5.6 oz) for women.
Because the volume occupies three dimensions, if the metre (m) is chosen as a unit of length, the corresponding unit of volume is the cubic metre (m 3). The cubic metre is also a SI derived unit. [16] Therefore, volume has a unit dimension of L 3. [17] The metric units of volume uses metric prefixes, strictly in powers of ten. When applying ...
Indonesia U-21; Nickname(s) Garuda Muda (The Young Garuda) Association: PSSI: Confederation: AFC (Asia) Sub-confederation: AFF (Southeast Asia) FIFA code: IDN: First international; Indonesia 10–0 Philippines (Bandar Seri Begawan, Brunei; August 16, 2002) Biggest win; Indonesia 10–0 Philippines (Bandar Seri Begawan, Brunei; August 16, 2002 ...