Answer:
426136363636.36365 Bq
Explanation:
Grays = 12
Mass = 2 kg
Time = 880
Energy = 0.4 MeV
Activity is given by

The activity N//t of the radioactive source is 426136363636.36365 Bq
Answer:
the answer is c) 25.1 feet/second
Explanation:
because the blood droplets can not increase speed past terminal velocity 100.
The angle(s) that it will reflect will be at any angle between -90° and 90. The correct answer between all the choices given is the fourth choice or letter D. Lmk if this is correct