Calculate he work done keep a satellite in cicular orbit about the earth

The answer are given above in attachment.

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:

1= 26.17

2= 1.17

3=30.86

4=5.86

just took the assigment on edge