If someone wanted to analyze a set of tree rings but didn't know when the tree lived, how could they find out? 1.Use carbon-14 dating methods on the organic wood sample.
2.By which analyzing which historic layer of rock or dirt the tree was found in.
3.Find a tree that matched the ring pattern.
4.Estimate how old the tree was by the condition of the wood.

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?