Problema Solution
A human hair is 4 X 10 ^-5m in diameter. A stand of DNA is 2 nanometers in diameter. How many strands of DNA laid side by side would it take to equal the width of a human hair.
write the answer in scientific notation, please show work
Answer provided by our tutors
LET N BE NO OF DNAs
4*10-5 = N*(2*10-9)
N = 4*10-5/ (2*10-9)
N = 2*104