Answer:
[tex]10^{-12}[/tex]
Step-by-step explanation:
Calculate, how many picoseconds are included in one second
1 hour = 3600 seconds = [tex]3.6\cdot10^3[/tex] seconds
1 hour = [tex]3.6\cdot10^{15}[/tex] picoseconds
[tex]3.6\cdot10^3[/tex] seconds = [tex]3.6\cdot10^{15}[/tex] picoseconds
1 second [tex]=\frac{3.6\cdot10^{15}}{3.6\cdot10^3}=\frac{10^{15}}{10^3}=10^{12}[/tex] picoseconds
Information: 1 second is [tex]10^{12}[/tex] picoseconds means that 1 picosecond is [tex]\frac1{10^{12}}=10^{-12}[/tex] fraction of a second
