Cell are small and us human can't see them with our own eyes. it is in possible to see cell without a microscope
W = Fd = 4(2100) = 8400 J
So the answer is A) 8400 J
I was just rewriting my notes on the work lesson I did in class today, so I saw this question at the perfect time!! :)
Hope it helps!! :)
a. all systems work together to stabilize the body
