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How fast is 381 miles per minute?

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It's about one-and-one-third times as fast as The Space Shuttle.
In other words, 381 miles per minute is 1.3197 times the speed of The Space Shuttle, and the speed of The Space Shuttle is 0.75775 times that amount.
(Orbiter vehicle velocity)
The space shuttle orbits at a speed of 288.7 miles per minute. 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 one-fourth as fast as a Meteor.
In other words, 381 miles per minute is 0.24 times the speed of a Meteor, and the speed of a Meteor is 4.2 times that amount.
(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 410 miles per minute and 2,700 miles per minute, depending on their size. The fireball effect, known as ablation, ceases once the atmosphere has slowed the meteoroid to a velocity of about 100 miles per minute.
It's about one-tenth as fast as a bolt of Lightning.
In other words, the speed of a bolt of Lightning is 10 times 381 miles per minute.
(atmospheric electrical discharge)
A bolt of lightning can travel at up to 3,600 miles per minute when arcing from the atmosphere to the Earth. An estimated 280 million lightning strikes strikes occur each year.
It's about eleven times as fast as a Bullet (Rifle).
In other words, 381 miles per minute is 11.2 times the speed of a Bullet (Rifle), and the speed of a Bullet (Rifle) is 0.0893 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 34.1 miles per minute. 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 fifteen times as fast as a Jet Fighter.
In other words, the speed of a Jet Fighter is 0.067 times 381 miles per minute.
(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 25 miles per minute. The F-16 has a flight ceiling of approximately 15 km (9.32 mi).
It's about thirty times as fast as a Bullet (Handgun).
In other words, 381 miles per minute is 26.6 times the speed of a Bullet (Handgun), and the speed of a Bullet (Handgun) is 0.0376 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 14.3 miles per minute. This type of ammunition has been the standard issue round of the United States Federal Bureau of Investigation (FBI) since 1990.
It's about thirty times as fast as The Speed of Sound.
In other words, 381 miles per minute is 29.8 times the speed of The Speed of Sound, and the speed of The Speed of Sound is 0.0336 times that amount.
(in dry air at 20°C)
The speed of sound in dry air at 20°C (68°F) is 12.8 miles per minute. Air is a relatively poor acoustic conductor, however, as sound will travel at speeds of between 55.8 miles per minute to 58.2 miles per minute in water, depending on its salinity.