if you sit at the outer edge of a rotating disk that has a rotatinal speed of 4rpm and under linear speed of 6m/s and your friends sits halfway to the center, what is your friends rotational speed and linear speed?

Protein and polypeptide sequences can be determined by first partially hydrolyzing the protein or polypeptide followed by amino acid sequencing of the fragment pieces using the chemical degradation process known as edman degradation. determine the sequence of the initial (18-amino acid) polypeptide that produces the following five partial sequences after hydrolysis and edman degradation.