An archaeologist finds an ancient wooden relic and obtains its count rate as 20 counts per minute per gram of sample. the count rate obtained form the bark of a living tree is 104 counts per minute per gram and the background count rate is 8 counts per minute what is the approximate age of the relic? 44 [radioactive carbon chas a half life of 5600 years] 3000 years 1000 years 17 000 years 22 000 years (a) (b) (c) (d) 3006

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?