A race car makes one lap around a track with a radius of 41 meters in 8 seconds. What is the velocity?

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)

Give me a example of a decomposer. explain what would happen if decomposers were absent from a forest ecosystem

Are formed where bumps from two surfaces come into contact ?