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Answer 1:
The comet would have to be the size of Mars.
Answer 2:
To literally destroy the entire planet of Earth, breaking it up into fragments, yes, the above answer may be true.
However, any asteroid or comet of 1 kilometer diameter or more would give us serious troubles. And at 5 kilometers wide, would certainly end our civilization, if not quite us. Past that, we would all die, as would all life. Well, most all life bigger than microbes.
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∙ 14y ago
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Would a tsunami triggered by a comet be bigger than a tsunami triggered by an earthquake?
actually a comet will make a bigger tsunami than an earth quake because it depends on how big the comet is so obviously if its a mini comet about the size of a fist its not going to do any affect but a comet like the size of Texas it would make a Mega Tsunami and once there was a Mega Tsunami the size of a city! and it flooded it completely.
What is the association between a comet size and its crater diameter approximately?
Are you asking how big the crater would be if it struck the Earth? In one sense, it would depend on the size of the comet and the speed; in another sense, it might not matter at all. The kinetic energy of any object is the mass times the velocity squared. Calculate the approximate mass of the comet, multiply it by the collision speed. If the comet were to come from behind, the impact velocity would be lower than if the comet hit us "head on". Whatever the comet's velocity, you would need to add the Earth's escape velocity; any object falling to Earth from space will have a additional velocity from Earth's gravity, which is 7 miles per second, about 25,000 miles per hour. Here's why it really wouldn't matter; if the comet is big enough and fast enough, it won't create a crater; it will re-make the Earth itself. The comet could punch THROUGH the crust of the planet, releasing the magma, the liquid rock in the mantle. If it's big enough, it could wipe out humanity, and many other species on Earth.
What is density of comet west?
The comet west is estimated to be about 37 miles in diameter.
How do you know that 1-thousand hiroshima size bombs would destroy earth?
It of course depends on what you mean by 'destroy earth' but 1000 Hiroshima sized bombs wouldn't alter the landscape all that much, only irradiate it.
What is the average size of a comet?
It varies- it entirely depends upon the size of the comet, they are all different and there's no standard size for them. They can be as little as about 100 feet across, whilst the big ones can have a diameter of a couple of miles.
Is a comet smaller or bigger than the earth?
Depends on the comet. Size varies. But they are usually smaller.
How big of an explosion if comet lulin had hit earth?
it depends on the size of the comet if it was small it would do about 5o/ out of a 1000 on earth if it was a very big one it would do about 989/ out of a 1000 so it depends on size
What happened when an asteroid hits the Earth?
depending on the size it could destroy the planet or impact in the water and not do much. It all depends on the size of said asteroid!
Is garradd comet a threat to earth?
I assume you are asking about C/2009 P1? This comet is no threat to Earth as it doesn't come anywhere near Earth. Its closest approach to the sun is about 1 1/2 times the size of Earth's orbit.
Would a tsunami triggered by a comet be bigger than a tsunami triggered by an earthquake?
actually a comet will make a bigger tsunami than an earth quake because it depends on how big the comet is so obviously if its a mini comet about the size of a fist its not going to do any affect but a comet like the size of Texas it would make a Mega Tsunami and once there was a Mega Tsunami the size of a city! and it flooded it completely.
What happens if a solar flare is aimed at the earth?
It can mess with the earths electronics or can create aurora borealis. It could also destroy all life on earth... Just depends on the size
What is the association between a comet size and its crater diameter approximately?
Are you asking how big the crater would be if it struck the Earth? In one sense, it would depend on the size of the comet and the speed; in another sense, it might not matter at all. The kinetic energy of any object is the mass times the velocity squared. Calculate the approximate mass of the comet, multiply it by the collision speed. If the comet were to come from behind, the impact velocity would be lower than if the comet hit us "head on". Whatever the comet's velocity, you would need to add the Earth's escape velocity; any object falling to Earth from space will have a additional velocity from Earth's gravity, which is 7 miles per second, about 25,000 miles per hour. Here's why it really wouldn't matter; if the comet is big enough and fast enough, it won't create a crater; it will re-make the Earth itself. The comet could punch THROUGH the crust of the planet, releasing the magma, the liquid rock in the mantle. If it's big enough, it could wipe out humanity, and many other species on Earth.
How likely is it for a comet to hit Earth in this lifetime?
Quite low. Debris shed from comets as they orbit the Sun strike the Earth thousands of times per year, but most of the debris, in the form of periodic meteor showers, is pretty tiny; an average sized particle would be the size of a grain of rice or smaller. But for the Earth to be struck by the nucleus of the comet itself? We're not certain that an actual comet has EVER struck the Earth, although we can be relatively confident that objects about the size of a comet has hit the Earth once every few thousand years or so. The probability of a comet striking the Earth within the next 50 years is quite low; one or two percent, but no higher.
What is the size of a comet'?
The comet's size changes depending on how close it is to the sun and the location. There's no real set size range.
What size of an equate would destroy thirty foot bridges and leave half foot cracks in the Earth?
Sorry misspelling - what size of an earthquake would destroy thirty foot bridges and leave half foot cracks in the earth?
How large might a comet be?
A comet be able to be of sun size.
Is comet fall followed by an earthquake?
Would the impact of a comet on the Earth cause earthquakes? Possibly; it would depend on where the comet hit. But depending on the size of the comet that struck the Earth, the results might vary from "merely" very terrible indeed to absolutely catastrophic; The impact, the fallout, the tsunami (if a water strike) and/or the "nuclear winter" darkening of the skies with dust and debris would dwarf most conceivable earthquakes. Let me put it this way; if a large comet strikes the Earth, the last thing people will be worrying about would be an earthquake.
