Using the measurements in the table, determine which unidentified metal has the lowest density
volume mass
a 12.5 cm3 122g
b 14.2cm3 132 g
c 18.1 cm3 126g
d 12.7cm3 126g

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory