Answer:
Newton's third law of motion
Step-by-step explanation:
For the soda can filled with water, it is hanging in the air because the weight of the soda can is acting against the effect of gravity.
This is in accordance to Newton's third law of motion which states that "To every action, there is an equal and opposite reaction. "
The soda can is unable to fall because the weight of the can and the force of gravity are equal but opposite