An airplane is delivering food to a small island. It flies 100 m above the ground at a speed of 160 m/s. How far away should the parcel be released so that it lands
on the island? Neglect air resistance.

hotter stars = bluer stars

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.