F=ma
a=v/t
a=vf-vi/t
a=8-4/2
a=4÷2
a=2msec*2
F=10×2
F=20N
The modern cell theory, which has three main additions: first, that DNA is passed between cells during cell division; second, that the cells of all organisms within a similar species are msotly the same, both structurally and chemically; and finally, that energy flow occurs within
this is all i know :/