Question

help

Answer 1

A biology student wants to understand how blood flows through the aorta. To model the heart and aorta, she sets up two identical pressure-controlled tanks that push blood through a 2-centimeter diameter tube. Her results are shown in the table below. Using her findings, predict the outcome of the experiment if the pressure in a person's aorta were to triple, assuming her setup is an accurate model.


Blood Pressure
(in kilograms per square centimeter)
Flow Rate
(in milliliters per second)
Tank 1
1
20
Tank 2
0.5
10
Answer
It will decrease the flow rate by a factor of 0.5.
It will decrease the flow rate by a factor of 2.
It will increase the flow rate by a factor of 3.
It will increase the flow rate by a factor of 6.

Answer 2

can u help me?

Answer 3

OK, look at the math.

The pressure in the first tank is exactly twice the pressure in the second tank. The flow rate from the first tank is also exactly twice the flow from the second tank. So you can say that an increase or decrease in pressure leads to a proportional increase or decrease in flow rate; i.e., a two fold increase in pressure leads to a two fold increase in flow rate.

So the question asks what happens if the pressure in the aorta triples...