A roller coaster reaches the top of the steepest hill with a speed of 6.6 km/h. It then descends the
hill, which is at an average angle of 37° and is
38.0 m long
v
Part A
What will its speed be when it reaches the bottom? Assume uk = 0.18

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