Question

How do I do number 12

Answer 1

d = √(k/R)

Explanation:

Eliminate fractions by multiplying by the denominator, then divide by the coefficient of d². Finally, take the square root.

`R=(k)/(d^2)\\\\Rd^2=k \quad\text{multiply by $d^2$}\\\\d^2=(k)/(R) \quad\text{divide by $R$}\\\\d=\sqrt{(k)/(R)} \quad\text{take the square root}`