Xf=?
Xi=0m
Vi=0m/s
Vf=40m/s
a=?
t=12s
Xf=Xi+1/2(Vi+Vf)t
Xf= 0 +1/2 (0+40)12
Xf=1/2 (40)12
Xf=240m
Vf=Vi+at
40=0+a (12)
40=12a
a=3.33m/s^2
<span>You forgot to post the list of "following atoms", but
Fluorine ions have a -1 charge. So find the charges of the other ions and The number of Fluorines you'll need should match the </span>other ion's charge.
The layers of the fossil the oldest is usual the bottom layer,and the top layer is the newest layer
You've failed because you failing becomes a statement rather than it becoming fact or what actually happened.
