A Rankine oval is formed by combining a source-sink pair, each having a strength of \(36 \mathrm{ft}^{2} / \mathrm{s}\) and separated by a distance of \(12 \mathrm{ft}\) along the \(x\) axis, with a uniform velocity of \(10 \mathrm{ft} / \mathrm{s}\) (in the positive \(x\) direction). Determine the length and thickness of the oval.