Multiple Choice
The flow rate of a fluid is expressed as a velocity of fluid multiplied by the cross-sectional area of the pipe (vA) . Assume that the pipe is a blood vessel with circular cross-sectional area calculated as A = ðr2, where r is radius. In a continuous flow rate, where v1A1 = v2A2, what is the change of the velocity of blood if a blood vessel with radius r1 reduced its radius by a factor of 2 to r2 = r1/2?
A) v2 = (1/4) v1
B) v2 = 2v1
C) v2 = 4v1
D) v2 = (1/2) v1
Correct Answer:
Verified
Correct Answer:
Verified
Q29: Hooke's law for restoring the force of
Q30: Which of the following measurements has the
Q31: When creating a model to explain a
Q32: You are measuring your weight on a
Q33: Which of the following numbers has the
Q35: Calculate both the sum of and the
Q36: The largest blue whale ever measured weighed
Q37: In creating a model that would explain
Q38: Numbers 0.025 and 25 have the same
Q39: Which of the following is the value