Two cylindrical pipes both carry an ideal fluid (zero viscosity) in laminar flow. Pipe A has radius RA = 8 cm and flow velocity vA = 2 cm/s. Pipe B has radius RB = 4 cm and flow velocity vB = 4 cm/s. Compared to the rate of flow in pipe A, that in pipe B is
A. twice as large.
B. the same.
C. half as large.
D. It depends on the length of the pipe
Answer: C
Physics & Space Science
You might also like to view...
What is meant by mixed flow? How is it different from unmixed flow?
What will be an ideal response?
Physics & Space Science
Uniform Circular Motion: An object moves with a constant speed of 30 m/s on a circular track of radius 150 m. What is the acceleration of the object?
A. 0 m/s2 B. 0.17 m/s2 C. 5.0 m/s2 D. 6.0 m/s2
Physics & Space Science
What kind of gas is most affected by thermal escape?
A. greenhouse gases B. light gases C. all gases equally
Physics & Space Science
At t = 0 the switch S is closed with the capacitor uncharged. If C = 30 ?F, ? = 50 V, and R = 10 k?, what is the potential difference across the capacitor when I = 2.0 mA?
A. 20 V B. 15 V C. 25 V D. 30 V E. 45 V
Physics & Space Science