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The minimum velocity of any meteorite falling into the Earth's gravity well would be the "escape velocity" of the Earth, about 25,000 miles per hour. Most will be going faster, sometimes MUCH faster. Radar tracking of Gemenid meteors a year or so ago showed that they were entering the atmosphere at 130,000 MPH!
What else can I help you with?
What causes a meteor to burn?
gases combined with the speed, plus the passing through earths atmosphere. Or to answer in a word........friction!
How long does it take a rocket at average speed to escape earths atmosphere?
It takes around 8 minutes for a rocket to reach space and escape Earth's atmosphere. This can vary slightly depending on the specific rocket and its speed.
Why do meteors disintegrate?
They disintegrate when they come into Earth's atmosphere, as a result of the enormous energy that is liberated - this is the result of the meteor's fast speed, which makes it heat up.
What forces act upon a meteor as it falls toward Earth?
As a meteor falls toward Earth, the main forces acting on it are gravity and air resistance. Gravity pulls the meteor downward, accelerating its descent. Air resistance, or drag, counteracts this motion by pushing against the meteor as it moves through the atmosphere, slowing it down. These forces together determine the meteor's speed and trajectory as it nears the Earth's surface.
What is the speed needed to enter the earths atmosphere?
It is difficult to answer this question because it mainly depends on the size and mass of an object. Most space debris sizes, almost like a land-rover, need hypersonic speed to enter the earth's atmosphere. This speed is classified as Mach 5 and over. (Mach means traveling at speed of sound, which means moving about one mile in five seconds) Meteors enter at a different rate. Most meteor-sized objects penetrate the earth's surface at roughly 30 miles an hour or a little more. Other things, like shuttles, need speeds a little more than the speed of sound. Because of their mass and size, more thrust is needed to penetrate the earth's atmosphere.
What causes a meteor to burn?
gases combined with the speed, plus the passing through earths atmosphere. Or to answer in a word........friction!
A piece of rock or metal from space that enters the earths atmosphere at high speed and burns up?
That is called a meteoroid. When it enters the Earth's atmosphere and burns up, it creates a streak of light in the sky, known as a meteor or shooting star.
How long does it take a rocket at average speed to escape earths atmosphere?
It takes around 8 minutes for a rocket to reach space and escape Earth's atmosphere. This can vary slightly depending on the specific rocket and its speed.
What causes a meteoroid to enter earths atmosphere?
Meteoroids enter Earth's atmosphere when they collide with Earth's gravitational field as they travel through space. The speed and angle at which a meteoroid enters Earth's atmosphere determine whether it will burn up as a meteor or hit the surface as a meteorite.
Is a meteor a star such as part of the sun?
No, a meteor is a small piece of space rock that burns very brightly and with high temperature as it passes into our atmosphere at high speed.
What is the average speed of a meteor?
The average speed of a meteor entering Earth's atmosphere can range from 25,000 to 160,000 miles per hour (40,000 to 257,000 kilometers per hour), depending on factors such as size, composition, and entry angle.
What is the average speed o f a meteor that is normal size?
About 94.000 mph (from 25000 to 160,000 mph)
Can you touch a meteor?
No. A meteor is an object falling through the atmosphere, likely at a very high speed. Touching such a fast moving object can result in serious injury. A meteorite, which is a meteor that has stuck the ground, can samfely be touched. Contrary to popular belief, meteorites are not hot. The burn through the upper atmosphere is very brief, so little heat is transferred to the object.
9 Why does a meteor appear as a streak in the sky?
Because it's entry into the atmosphere at great speed causes enough friction to light it's fire.
Why do meteors disintegrate?
They disintegrate when they come into Earth's atmosphere, as a result of the enormous energy that is liberated - this is the result of the meteor's fast speed, which makes it heat up.
How do the astronauts reduce the space capsules speed for reentry into the Earths atmosphere?
Look on Wikipedia unless you know the answer.-Acaheny & Ausia
How long does it take for a meteor to disintegrate in earth's atmosphere?
The time it takes for a meteor to disintegrate in Earth's atmosphere varies depending on its size, speed, and composition. Typically, smaller meteors disintegrate within seconds to minutes, while larger ones may take longer before completely burning up.
