Answer:
None of the terms are dimensionally homogeneous
Explanation:
dimensions from each term:
we observe that there are no terms with equal dimensions, that is to say none of the terms are dimensionally homogeneous
Answer:
the g force from when it was thrown to were it comes back down
Explanation:
while your throwing it you applying force which it would have a stronger g force but when the gravitationally pull come into effect it's will lose some of that force
Actually, two of the statements can be argued to be true:
1)Changing several different factors in an experiment takes too many controls.
This means that for every factor that is changed you need a control which has all the other factors stable - but with many factors, this might be undoable.
2) - and this is the best answer:
When only one factor is changed, you can be more certain that it caused the results.
If this factor is the only thing that changes, you can safely assume that it caused the results!