Santa's sleigh is parked on a hill. It has a mass of 1200 kg.
25
Draw a quantitative (with numbers) force diagram for the sleigh.

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