If a person weighs 63.4 KG they will weigh 139.773 but if you estimate it which in most cases you do it would be 139.8 :)
Answer:
answer: they seek to produce verficiable data.
Answer:
5=C, every action has an equal or opposite reaction,
6=B, since it has less air drag and more force exerted on it
7= You're correct
Answer:
A.......
Explanation: The sun is the main source of energy