Using this formula “P= v^2/R for vI need help solving questions number 20

Given:
[tex]P=\frac{v^2}{R}[/tex]Required:
We need to find the value of v when P=0.5 and R =32.
Explanation:
Replace P =0.5 and R=32 in the given formula.
[tex]0.5=\frac{v^2}{32}[/tex]Multiply both sides of the equation by 32.
[tex]0.5\times32=\frac{v^2}{32}\times32[/tex][tex]16=v^2[/tex][tex]4^2=v^2[/tex][tex]We\text{ know that if }a^n=b^n\text{ then a=b.}[/tex][tex]4^2=v^2\text{ gives 4=v.}[/tex][tex]v=4[/tex]Final answer:
[tex]v=4[/tex]