Skip to ContentGo to accessibility pageKeyboard shortcuts menu
OpenStax Logo

Problems & Exercises

1.

2.78 cm 3 /s 2.78 cm 3 /s

3.

27 cm/s

5.

(a) 0.75 m/s

(b) 0.13 m/s

7.

(a) 40.0cm240.0cm2

(b) 5.09×1075.09×107

9.

(a) 22 h

(b) 0.016 s

11.

(a) 12.6 m/s

(b) 0.0800m3/s0.0800m3/s

(c) No, independent of density.

13.

(a) 0.402 L/s

(b) 0.584 cm

15.

(a) 127 cm 3 /s 127 cm 3 /s

(b) 0.890 cm

17.

P = Force Area , ( P ) units = N/m 2 = N m/m 3 = J/m 3 = energy/volume P = Force Area , ( P ) units = N/m 2 = N m/m 3 = J/m 3 = energy/volume

19.

184 mm Hg

21.

2 . 54 × 10 5 N 2 . 54 × 10 5 N

23.

(a) 1.58×106 N/m21.58×106 N/m2

(b) 163 m

25.

(a) 9.56×108W9.56×108W

(b) 1.4

27.

1.26 W

29.

(a) 3.02×103 N3.02×103 N

(b) 1.03×1031.03×103

31.

1 . 60 cm 3 /min 1 . 60 cm 3 /min

33.

8.7 × 10 11 m 3 /s 8.7 × 10 11 m 3 /s

35.

0.316

37.

(a) 1.52

(b) Turbulence will decrease the flow rate of the blood, which would require an even larger increase in the pressure difference, leading to higher blood pressure.

39.
225 mPa s 225 mPa s
41.
0 . 138 Pa s, 0 . 138 Pa s,

or

Olive oil.

43.

(a) 1.62×104 N/m21.62×104 N/m2

(b) 0.111 cm3/s0.111 cm3/s

(c)10.6 cm

45.

1.59

47.

2.95×106 N/m22.95×106 N/m2(gauge pressure)

51.

N R = 1.99 × 10 2 < 2000 N R = 1.99 × 10 2 < 2000

53.

(a) nozzle: 1.27×1051.27×105 , not laminar

(b) hose: 3.51×1043.51×104, not laminar.

55.

2.54 << 2000, laminar.

57.

1.02 m/s

1.28 × 10 –2 L/s 1.28 × 10 –2 L/s

59.

(a)≥ 13.0 m≥ 13.0 m

(b) 2.68×106 N/m22.68×106 N/m2

61.

(a) 23.7 atm or 344 lb/in2344 lb/in2

(b) The pressure is much too high.

(c) The assumed flow rate is very high for a garden hose.

(d) 5.27×1065.27×106 > > 3000, turbulent, contrary to the assumption of laminar flow when using this equation.

62.

1 . 41 × 10 3 m 1 . 41 × 10 3 m

64.

1 . 3 × 10 2 s 1 . 3 × 10 2 s

66.

0.391 s

Order a print copy

As an Amazon Associate we earn from qualifying purchases.

Citation/Attribution

This book may not be used in the training of large language models or otherwise be ingested into large language models or generative AI offerings without OpenStax's permission.

Want to cite, share, or modify this book? This book uses the Creative Commons Attribution License and you must attribute OpenStax.

Attribution information Citation information

© Jan 19, 2024 OpenStax. Textbook content produced by OpenStax is licensed under a Creative Commons Attribution License . The OpenStax name, OpenStax logo, OpenStax book covers, OpenStax CNX name, and OpenStax CNX logo are not subject to the Creative Commons license and may not be reproduced without the prior and express written consent of Rice University.