Plutonium remains radioactive for a long time as the half life is 87.7 years for Pu-239. The half life is how long it takes for half of the radioactivity to dissipate.
About half an hour.
In a normal game of netball, each half is 30 minutes. Though keep in mind that the game is actually played in quarters and each quarter is 15 minutes long. Generally half time is longer than quarter time and thee-quarter time.
thirteen and a half hours
The flight time is about an hour and a half.
About 12 and a half hours.
Pretty sure it is 15 minutes
About 2 and a half hours.
the time signature. it depends what time the song is in. if the song is in cut time, the note is half as long as how it usually is in 4/4 time.
The long time question has been, is the glass half empty, or half full?
a long time
five and a half hours