Which model is a physical model? A. A plastic skeleton that shows all the bones of the body
B. A simulation of the history of life on Earth
C. A graph that uses analyzed data to show the spread of a disease
D. A bar graph that shows how many students buy lunch each day

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?