2007-03-10 12:50:42 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
From where?
2007-03-10 12:52:24 · answer #1 · answered by Joy M 7 · 1⤊ 2⤋
Starting when?
From when we might first spot it? Maybe no time at all! Even in recent years, large meteoroids have passed within the orbit of the moon (not in between the earth and moon, but closer to the earth than the moon orbits), and no one saw it until it had already passed!
From the time it hits the upper atmosphere? It can vary, from just a few seconds to maybe 10-15 seconds. Depends on the size and composition, as well as its speed as it hits the atmosphere. Larger and heavier objects will lose less speed in the atmosphere.
Most meteoroids will not survive their fall through the atmosphere. They almost always burn up, and some break up into many smaller pieces (which then burn up).
2007-03-10 13:01:25 · answer #2 · answered by Jim S 5 · 1⤊ 0⤋
I agree with Joy M. Do you mean, from the time they first hit the atmosphere? They mostly have a speed of about 17,000 miles per hour, and quickly slow down after they hit the air. But still, they take only a few seconds to hit the ground.
2007-03-10 13:02:13 · answer #3 · answered by morningfoxnorth 6 · 1⤊ 0⤋
First, to reply for your question, no. inspite of if dinosaurs had now no longer lengthy lengthy gone extinct contained in the technique the ok-T extinction (Cretaceous-Tertiary extinction), they could now now no longer proceed to exist. rather a lot all of "dinosaurs" were chilly-blooded, and could subsequently be now no longer able to proceed to exist an ice age. even besides the undeniable fact that, human beings could also now no longer likely exist, because of truth the niches spread out by the extinction of the dinosaurs allowed for the speedy evolution and diversification of mammals, which therefore added about the evolution of guy. Now, with connection with the concept that a meteorite impression added about the extinction: even besides the undeniable fact that, as truly some human beings have already stated, it truly is in consumer-friendly words an concept and in no way a truth, there is assorted data that permits it. First is the crater itself. positioned in Mexico, the Chicxulub Crater suits the age of the ok-T extinction, and is properly large to have added about huge damage to a large surrounding section. This impression could have also kicked rather truly some airborne dirt and airborne dirt and dirt into the ambience, blocking the picture voltaic for a minimum of 10 years. without direct image voltaic, flora could start up to die very immediately. Herbivores could immediately start up lack of existence out from a lack of food aspects, and therefore carnivores could die as suitable. The Chicxulub Crater is in part on land and in part over the sea. a large impression over water could have also added about large tsunamis, causing damage to all surounding coastlines (there is likewise geologic data of this resembling the ok-T extinction).
2016-12-01 19:38:27 · answer #4 · answered by ? 4 · 0⤊ 0⤋
It can vary according to the speed and location of the asteroid. They travel from about 30-60000 miles per hour and I'm sure there are much faster ones out there: we just haven't found them yet.
2007-03-10 12:59:11 · answer #5 · answered by ron k 4 · 0⤊ 0⤋
the speed varies. but depending on the size of the metoriod, it might get burned out before it reaches land
2007-03-10 13:00:43 · answer #6 · answered by Anonymous · 0⤊ 0⤋
It's instantaneous.
It either hits or it misses
2007-03-10 12:53:42 · answer #7 · answered by Anonymous · 0⤊ 0⤋
millions of yrs. but one could hit tomorrow.
2007-03-10 12:56:35 · answer #8 · answered by RoHo 7 · 0⤊ 1⤋
37 minutes and there is one the size of an oil tanker headed our way now....RUN!
2007-03-10 12:53:34 · answer #9 · answered by Anonymous · 1⤊ 2⤋
if it started right now....when ever it wanted to
2007-03-10 13:45:11 · answer #10 · answered by RayM 4 · 0⤊ 1⤋