Suppose a bullet is shot from a rifle with a muzzle velocity of 1,500 mis. If the gun is fired from 1.5 meters above the ground, how far will that bullet travel if fired horizontal to the ground? need ASAP plz

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.