Adocking shuttle needs to decelerate at a very specific rate, given by a=bt2a=bt2 . if the shuttle is moving at 800m/s800m/s and begins at 30km away, how long will it take to dock?

as it is given here

by integrating both sides

as finally it has to stop

also we know that

integrating both sides

so it will take t = 50 s to cover this distance

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

vapour or gas assuming atmospheriv pressure