I believe that the answer is C. Hope this Helps:)))
Answer:
m = 20,000 kg
Explanation:
Force, 
Acceleration of the shark, 
It is required to find the mass of the shark. Let m is the mass. Using second law of motion to find it as follows :
F = ma
Putting the value of F and a to find m

So, the shark's mass is 20,000 kg.
Answer:
A. Inertial Confinement and B. Magnetic Confinement
Sound waves travel around the boxed room causing them to bounce of the nearest walls to the end of the room>