Radium-226 is radioactive and has a half life of 1600. years. Calculate the activity of a 5.2 mg sample of radium-226. Give your answer in becquerels and in
curies. Be sure your answer has the correct number of significant digits.

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.