Answer:
[tex]x=0.04m[/tex]
Step-by-step explanation:
From the question we are told that:
Diameter [tex]d=24cm[/tex]
Radius [tex]r=24/2=>12cm[/tex]
Igniter distance [tex]d_g=9cm[/tex]
Generally the equation for depth is mathematically given by
[tex]r^2=4d_gx[/tex]
Therefore
[tex]x=\frac{r^2}{4d_g}[/tex]
[tex]x=\frac{12^2}{4*9}[/tex]
[tex]x=4cm[/tex]
[tex]x=0.04m[/tex]