Question

Assume I have a funnel that fits a rectangle air vent of 1 x 4 with an opening for a circular tube of 0.5 diameter. After connecting a 0.5 diameter x 2 ft tube to the funnel, the air vent blows air through the tube, but the air coming out from the other end of the tube is much weaker than without the funnel and the tube. Shouldn't all the air from the vent be funneled into this tube causing a greater force of air through the tube?

A. Yes, the funnel should concentrate all the air from the vent into the tube, resulting in a stronger force of air through the tube.
B. No, the funnel might cause turbulence or air resistance, reducing the force of air passing through the tube.
C. Yes, the funnel should enhance the force of air through the tube due to its design and the narrowed passage.
D. No, the funnel might create back pressure, hindering the airflow through the tube.

Answer 1

The funnel might cause turbulence or air resistance, reducing the force of air passing through the tube.

Step-by-step explanation:

The answer to your question is B. No, the funnel might cause turbulence or air resistance, reducing the force of air passing through the tube.

When air passes through a funnel and then a tube, it can experience turbulence and air resistance. The funnel shape can disrupt the smooth flow of air, causing the air molecules to collide with each other and with the walls of the funnel. This can result in a reduction in the force of air passing through the tube, making the air coming out from the other end weaker than expected.

In addition, the size of the airway also affects the resistance. A smaller diameter forces air through a smaller space, causing more collisions and further increasing the resistance.