Final answer:
The question pertains to calculating the ratio of velocities of two different gases in a physics problem, requiring algebraic manipulation of a given equation.
Step-by-step explanation:
The question seems to involve concepts related to fluid dynamics, more precisely the velocity of gas flow, which is a topic covered in Physics. To solve for the ratio of the velocity of gas A to the velocity of gas B, given by the equation (4), we would typically rearrange the equation to isolate the desired ratio on one side. This process involves algebraic manipulation, such as dividing both sides by the velocity of gas B or performing other equivalent operations that simplify the equation.
Once the equation is rearranged, you can substitute given values for any variables in the equation to find the numerical ratio of the velocities. This type of problem is commonly found in high school physics coursework, particularly when studying the principles of fluid dynamics and Bernoulli's equation which relates to the conservation of energy in a flowing fluid.