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How fast is 47 kilometers per second?

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It's about one-and-one-tenth times as fast as a Meteor.
In other words, the speed of a Meteor is 0.91 times 47 kilometers per second.
(formally Meteoroid or meteorite, depending on the context; a.k.a. "shooting star", a.k.a. "falling star")
Small meteoroids enter the Earth's atmosphere at speeds between 11 kilometers per second and 72 kilometers per second, depending on their size. The fireball effect, known as ablation, ceases once the atmosphere has slowed the meteoroid to a velocity of about 2.8 kilometers per second.
It's about half as fast as a bolt of Lightning.
In other words, 47 kilometers per second is 0.48 times the speed of a bolt of Lightning, and the speed of a bolt of Lightning is 2.1 times that amount.
(atmospheric electrical discharge)
A bolt of lightning can travel at up to 97 kilometers per second when arcing from the atmosphere to the Earth. An estimated 280 million lightning strikes strikes occur each year.
It's about six times as fast as The Space Shuttle.
In other words, 47 kilometers per second is 6.0695 times the speed of The Space Shuttle, and the speed of The Space Shuttle is 0.16476 times that amount.
(Orbiter vehicle velocity)
The space shuttle orbits at a speed of 7.7436 kilometers per second. During liftoff, the space shuttle accelerates to orbital speed in 8.5 minutes, consuming over 1.59 million kg (3.51 million lbs) of propellant in the process.
It's about 50 times as fast as a Bullet (Rifle).
In other words, 47 kilometers per second is 51.4 times the speed of a Bullet (Rifle), and the speed of a Bullet (Rifle) is 0.0195 times that amount.
(5.56 x 45 mm, a.k.a. 5.56 NATO)
A 5.56 x 45 mm cartridge is fired at a velocity of 0.915 kilometers per second. As the NATO rifle cartridge, it is used by the military forces of more than thirty-one countries, including use in the M16 series, M4 Carbine, HK-416, and M249 Squad automatic weapons used by the United States armed forces.
It's about 70 times as fast as a Jet Fighter.
In other words, the speed of a Jet Fighter is 0.014 times 47 kilometers per second.
(for Lockheed Martin F-16, a.k.a. Fighting Falcon, a.k.a. Viper) (maximum speed at altitude)
An F-16's maximum speed at altitude is approximately 0.66 kilometers per second. The F-16 has a flight ceiling of approximately 15 km (9.32 mi).
It's about 100 times as fast as a Bullet (Handgun).
In other words, 47 kilometers per second is 122 times the speed of a Bullet (Handgun), and the speed of a Bullet (Handgun) is 0.0082 times that amount.
(for .40 Smith & Wesson 135 grain Sierra JHP, VV 3N37 powder, Fed. 100 primer, Remington case) (muzzle velocity)
A 0.40 caliber Smith & Wesson bullet has a muzzle a velocity of 0.383 kilometers per second. This type of ammunition has been the standard issue round of the United States Federal Bureau of Investigation (FBI) since 1990.
It's about 150 times as fast as The Speed of Sound.
In other words, 47 kilometers per second is 137 times the speed of The Speed of Sound, and the speed of The Speed of Sound is 0.0073 times that amount.
(in dry air at 20°C)
The speed of sound in dry air at 20°C (68°F) is 0.343 kilometers per second. Air is a relatively poor acoustic conductor, however, as sound will travel at speeds of between 1.5 kilometers per second to 1.56 kilometers per second in water, depending on its salinity.