Try another version of this question
A picosecond is one trillionth of a second. How many picoseconds are there in `4` minutes?
For example, if you want to enter the number `4.578 times 10^(-3)`, you would type 4.578 * 10^-3.
One trillionth = `1 xx10^-12` `2.4*10^(14)`