The speed at which your hair grows estimated as 1.25 centimetres per 2592000 second. The nearest order of magnitude in meters per second is [tex]0.578 * 10^{-8}m/s[/tex]
The calculation to find seconds in a month is by multiplying together the number of days in a month, the number of hours in a day (24), the number of minutes in a hour (60) also the number of seconds in a minute (60). Therefore
1. Month = 2592000. Sec
Whereas the order of magnitude is usually written as 10 to the [tex]n^{th}[/tex] power. The [tex]n[/tex] represents the order of magnitude. If you raise a number by one order of magnitude, you are basically multiplying that number by 10
On average, the growth rate for human hair is about 1.25 centimetres or 0.5 inches per month, or about 15 centimetres or 6 inches per year.
1.25 centimetres per month = 1.25 centimetres per 2592000 second.
1.25 centimetres per 2592000 second is equal to [tex]1.25 cm / 2.592*10^6 s = 0.578 cm / 10^6 s[/tex]
[tex]\frac{0.578 cm}{10^6 s} * \frac{10^{-6} }{10^{-6} } = 0.578 * 10^{-6}cm/s = 0.578 * 10^{-8}m/s[/tex]
Grade: 9
Subject: physics
Chapter: the speed at which your hair grows
Keywords: hair grows, the nearest order of magnitude, meters per second, speed, hair
