if a ball is dropped from rest from an elevated position at the same time a second Ball is launched horizontally (from the same height)then which ball Will hit the ground first? assume the balls behave as projectiles

In the 1980's, congress authorized the u.s. department of energy to build the wipp facility in the chicuahuan desert in new mexico. what is the purpose of wipp?

How would a small bar magnet be oriented when placed at position x?

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?