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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 .
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 ...
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]
Adidas Tricolore, the official ball for the 1998 World Cup. Law 2 of the game specifies that the ball is an air-filled sphere with a circumference of 68–70 cm (27–28 in), a weight of 410–450 g (14–16 oz), inflated to a pressure of 0.6 to 1.1 atmospheres (60–111 kPa or 8.7–16.1 psi) "at sea level", and covered in leather or "other suitable material". [7]
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.
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.
24 centimeters 8 centimeters 140 grams livestock hair; leather (case) Schlagball: Sphere 19-21 centimeters - 70-85 grams - red leather covered Boules: Boccia: BISFed: Sphere 26.2-27.8 cm - 263-287 grames - vinyl, polyurethane fabric, leather, synthetic leather, suede Bocce volo (bowl) WPBF: Sphere - 8.9-11.1 centimeters 900-1200 grams - metal ...
Volume of Chagan Lake, artificial lake created by nuclear explosion 1.7 × 10 7: Volume of material in the Gatun Dam, completed in 1913 2.8 × 10 7: Volume of concrete in the Three Gorges Dam, the world's largest concrete structure 4.3 × 10 7: Volume of Aswan Dam: 9 × 10 7: Volume of gas required per day by India in 2005 1.01 × 10 8: Volume ...