has to be four revolutions PER second.
The Big Bang Theory Season 10, Episode 20
...between the number of chirps PER
minute and the ambient temPERature.
The Big Bang Theory Season 3, Episode 2
Eighteen kilometers PER hour.
Money Heist Season 3, Episode 8
- -equals mass times
9.8 meters PER second PER second.
The Big Bang Theory Season 3, Episode 10
Based on the number of chirps
PER minute and the temPERature...
The Big Bang Theory Season 3, Episode 2