Assuming a constant flow, what will happen to a fluid if the cross-sectional area of the tube in which its flows decrease?
a. Its velocity will increase.
b. Its velocity will decrease.
c. Its density will decrease.
d. Its viscosity will decrease.
ANS: B
Throughout the tube, the fluid flows at a constant rate of 5 L/min. At point A, with a cross-sectional area of 5.08 cm2, the velocity of the fluid is 16.4 cm/sec. At point B, the cross-sectional area of the tube decreases to 2.54 cm2, half its prior value. At this point, the ve-locity of the fluid doubles to 32.8 cm/sec.
You might also like to view...
Which of the following is NOT one of the "Five Patient Rights"?
A) Right patient B) Right strength C) Right doctor D) Right route of administration
If a potential donor declares refusal of organ donation prior to death:
A) no organs can be harvested. B) the courts will decide. C) UNOS can intercede. D) a family member can override that declaration.
Which of the following can increase the incidence of RDS?
1. surfactant deficiency 2. non-ossified chest bones 3. excess surfactant production 4. infants born weighing greater than 1200 g A) 1 and 2 B) 1 and 3 C) 2 and 3 D) 3 and 4
The epithelial cells found in urine and pictured here are ________ cells.
Fill in the blank(s) with the appropriate word(s).