If a stream with a horizontal distance of 5km begins at an elevation 200 m higher than where it ends why orbits stream gradient

If a swimmer is traveling at a constant speed of 0.85 m/s,how long would it take to swim the length of a 50m olympic sized pool?

What if the united states, mexico, and canada took the eu’s example and joined to forms north american union ? based on your knowledge of the europe union, describe two setbacks or hurdles that this idea might face

What are policymakers trying to do by using the media to deliver specific messages to citizens?