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.
Some other examples of comets include Comet Halley, Comet Hale-Bopp, and Comet Hyakutake. These comets are known for their brightness, size, and visibility from Earth.
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.
A comet can appear larger than the sun when it is closer to Earth and has a larger visible tail. The tail of a comet can extend for millions of miles, creating the illusion of a bigger size compared to the sun when viewed from our perspective on Earth.
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.
The comet west is estimated to be about 37 miles in diameter.
Depends on the comet. Size varies. But they are usually smaller.
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
Some other examples of comets include Comet Halley, Comet Hale-Bopp, and Comet Hyakutake. These comets are known for their brightness, size, and visibility from 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!
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.
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.
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
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.
A comet be able to be of sun size.
The comet's size changes depending on how close it is to the sun and the location. There's no real set size range.
Sorry misspelling - what size of an earthquake would destroy thirty foot bridges and leave half foot cracks in the earth?
A comet can appear larger than the sun when it is closer to Earth and has a larger visible tail. The tail of a comet can extend for millions of miles, creating the illusion of a bigger size compared to the sun when viewed from our perspective on Earth.