Answer: make objective observations.
Explanation:
Answer:
A. Argon
Explanation:
It is a noble gas, a group which is not reactive.
Tom used more Force but over a shorter distance. Tom and Claudia both did the same amount of work.
We can use the equation vf (the final velocity) =vi (the initial velocity) +at (aceleration times time)
We know the final velocity 100m/s, the initial velocity 0, and the acceleration (gravity) 9.8m/s^2. So, 100=0+9.8t. t=100/9.8