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

Aspectroscope breaks light up into its colors, allowing scientists to analyze light from the solar system and universe. by studying the spectral line patterns, widths, strengths and positions, scientists can determine the speed, position, and of celestial bodies. a) age b) origin c) rotation d) temperature