Question

A fortnight is a charming English measure to time equal to $2.0$ weeks (the word is a contraction of fourteen nights). That is a nice amount of time in pleasant company but perhaps a painful string of microseconds in unpleasant company. How many microseconds are in a fortnight?

Answer 1

A week is $7$ days, each of which has $24$ hours, and an hour is equivalent to $3600$ second. Thus , two weeks (a fortnight)is $1209600s$. By definition of the micro prefix, this is roughly $1.21\times {10}^{12}\mu s$