What is the ratio of the rms speed of hydrogen and Helium gases in a container at same temperature?

Which type of basaltic lava flow has a fairly smooth

What are the necessary conditions for fusion?

What would people living along the coast in south florida do if there was a hurricane warning? move to locations away from the water flock along coasts to watch the natural phenomenon buy instruments to predict the exact location of the hurricane measure water levels to know the exact time of the hurricane