Answer:
The required frequency = 0.442 Hz
Explanation:
Frequency 
where;

Then;

However;
and;
mass 


where;

Then;

replacing the values;


The data from our experiment.
Answer: ??? D? dont quote me on it tho <3
Explanation:
Answer: Either a change in mass or velocity or both.
Explanation: Since the equation for momentum is p (momentum) = m (mass)* v (velocity), if the mass or velocity (or both) of the object is changed, the momentum will change.