Question

How easy is it to breathe through a straw? When you breathe deeply, you pull in 4.0 L of air in about 3.0 s. This requires a pressure difference of about 4.0 kPa between the air in your lungs and the outside air. What additional pressure difference is required to pull 20°C air through a straw that is 22 cm long and 0.56 cm in diameter?

Answer 1

Calculating the additional required pressure difference for breathing through a straw involves principles of fluid dynamics and varies with the resistance posed by the straw's dimensions.

Step-by-step explanation:

The question is asking for an additional pressure difference required to breathe through a straw. In the context of physics, the scenario involves understanding the principles of fluid dynamics and pressure. When you breathe in normally, a certain amount of pressure difference is needed to overcome the resistance of the airway. However, when breathing through a straw, the resistance is higher due to the smaller diameter of the straw and its length, so a greater pressure difference would be required to inhale the same volume of air. Unfortunately, without more specific data or formulas related to fluid flow through a tube, we cannot calculate the exact additional pressure needed to breathe through a straw of the specified dimensions.