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How fast is 422.10 kilometers per hour?

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It's about 0.0000004 times as fast as The Speed of Light.
In other words, 422.10 kilometers per hour is 0.0000003911039020 times the speed of The Speed of Light, and the speed of The Speed of Light is 2,556,865.310 times that amount.
(C) (in a vacuum)
The speed of light (and all other electromagnetic radiation) in a perfect vacuum is known as "c" and measures exactly 1,079,252,850 kilometers per hour, per the formal definition of the meter. While visible light travels close to this speed in air, it slows to 719,501,899 kilometers per hour when passing through the glass of a typical window.
It's about one-eight-hundred-fiftieth as fast as a bolt of Lightning.
In other words, the speed of a bolt of Lightning is 830 times 422.10 kilometers per hour.
(atmospheric electrical discharge)
A bolt of lightning can travel at up to 350,000 kph when arcing from the atmosphere to the Earth. An estimated 280 million lightning strikes strikes occur each year.
It's about one-three-hundred-fiftieth as fast as a Meteor.
In other words, the speed of a Meteor is 360 times 422.10 kilometers per hour.
(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 40,000 kph and 260,000 kph, depending on their size. The fireball effect, known as ablation, ceases once the atmosphere has slowed the meteoroid to a velocity of about 10,000 kph.
It's about one-sixty-fifth as fast as The Space Shuttle.
In other words, 422.10 kilometers per hour is 0.015142 times the speed of The Space Shuttle, and the speed of The Space Shuttle is 66.041 times that amount.
(Orbiter vehicle velocity)
The space shuttle orbits at a speed of 27,877 kph. 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-tenth as fast as a Bullet (Rifle).
In other words, 422.10 kilometers per hour is 0.1280 times the speed of a Bullet (Rifle), and the speed of a Bullet (Rifle) is 7.810 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 3,294 kph. 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 one-fifth as fast as a Jet Fighter.
In other words, 422.10 kilometers per hour is 0.180 times the speed of a Jet Fighter, and the speed of a Jet Fighter is 5.60 times that amount.
(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 2,400 kilometers per hour. The F-16 has a flight ceiling of approximately 15 km (9.32 mi).
It's about three-tenths as fast as a Bullet (Handgun).
In other words, 422.10 kilometers per hour is 0.3050 times the speed of a Bullet (Handgun), and the speed of a Bullet (Handgun) is 3.280 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 1,380 kph. This type of ammunition has been the standard issue round of the United States Federal Bureau of Investigation (FBI) since 1990.