The gravitational energy of the Earth is approximately is the mass of the Earth. This i...

The gravitational energy of the Earth is approximately is the mass of the Earth. This is approximately the energy needed to blow the Earth into small fragments (the size of asteroids). How large would an antimatter meteorite the density of nickeliron have to he in order to blow up the Earth when it strikes? Compute the energy involved in the particle-antiparticle annihilation and compare it with the total energy in all the nuclear arsenals of the world H2000 megatons (MT), where