Impacts are an important process in the solar system.
The size and shape of impact craters depends on the mass and speed of the impactor.
The likelihood that an impact will occur also depends on the size and orbit of the object.
The size of the final crater is largely controlled by the kinetic energy of the impactor
KE = 1 mv 2 2
m = object’s mass
v = object’s speed
The Tunguska Event
impact crater is roughly 10 times larger than the diameter of the object.
Iron-rich objects will make somewhat bigger craters, while ice-rich objects objects will make somewhat smaller craters.
Doubling the size of the impactor increases the energy involved by a factor of 8.
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