Question

Take 50 points please help me these two questions ​

Answer 1

`\\ \rm\Rrightarrow T=2\pi\sqrt{(l)/(g)}`

`\\ \rm\Rrightarrow T^2=4\pi ^2(l)/(g)`

`\\ \rm\Rrightarrow l=(T^2g)/(4\pi^2)`

If we solve it we get it in between 60 -80

So

Our average breath rate is 17-20

So the ratio will come near 4+