Study for the Respiratory Therapy Test. Use flashcards and multiple choice questions, featuring hints and explanations. Prepare for your exam successfully!

Multiple Choice

If Flow is 200 units and r^4 is 16, what is Change in Pressure P according to P = Flow / r^4?

The key idea is plugging numbers into the given formula and performing straightforward division. P equals Flow divided by r to the fourth power, so with Flow = 200 and r^4 = 16, you compute P = 200 / 16. That division gives 12.5, so the change in pressure is 12.5 units. This value fits the equation exactly because the denominator is 16; dividing by 25, 8, or 4 would yield 8, 25, or 50 respectively, which would correspond to different divisor values, not the provided r^4.

The key idea is plugging numbers into the given formula and performing straightforward division. P equals Flow divided by r to the fourth power, so with Flow = 200 and r^4 = 16, you compute P = 200 / 16. That division gives 12.5, so the change in pressure is 12.5 units. This value fits the equation exactly because the denominator is 16; dividing by 25, 8, or 4 would yield 8, 25, or 50 respectively, which would correspond to different divisor values, not the provided r^4.