Skip to ContentGo to accessibility pageKeyboard shortcuts menu
OpenStax Logo
College Physics for AP® Courses

Chapter 1

College Physics for AP® CoursesChapter 1

Problems & Exercises

1.
  1. 27 . 8 m/s 27 . 8 m/s size 12{"27" "." 8`"m/s"} {}
  2. 62.1 mph62.1 mph size 12{"62" "." 1" mph"} {}
3.

1.0 m s = 1 . 0 m s × 3600 s 1 hr × 1 km 1000 m 1.0 m s = 1 . 0 m s × 3600 s 1 hr × 1 km 1000 m size 12{ { {1 "." "0 m"} over {s} } = { {1 "." "0 m"} over {s} } times { {"3600 s"} over {"hr"} } times { {1`"km"} over {"1000 m"} } } {}

=3.6 km/h=3.6 km/h size 12{ {}=3 "." 6" km/h"} {}.

5.

length: 377 ft377 ft size 12{"377"" ft"} {}; 4.53×103 in.4.53×103 in. size 12{4 "." "53" times "10" rSup { size 8{3} } " in" "." } {} width: 280 ft280 ft size 12{"280"" ft"} {}; 3.3×103 in3.3×103 in size 12{3 "." 3 times "10" rSup { size 8{3} } " in"} {}.

7.

8 . 847 km 8 . 847 km size 12{8 "." "847"" km"} {}

9.

(a) 1.3×109 m1.3×109 m size 12{1 "." 3 times "10" rSup { size 8{ - 9} } " m"} {}

(b) 40 km/My40 km/My size 12{"40"" km/My"} {}

11.

2 kg

13.
  1. 85 . 5 to 94 . 5 km/h 85 . 5 to 94 . 5 km/h size 12{"85" "." 5" to 94" "." "5 km/h"} {}
  2. 53 . 1 to 58 . 7 mi/h 53 . 1 to 58 . 7 mi/h size 12{"53" "." 1" to 58" "." "7 mi/h"} {}
15.

(a) 7 . 6 × 10 7  beats 7 . 6 × 10 7  beats size 12{7 "." 6 times "10" rSup { size 8{7} } " beats"} {}

(b) 7 . 57 × 10 7  beats 7 . 57 × 10 7  beats size 12{7 "." "57" times "10" rSup { size 8{7} } " beats"} {}

(c) 7 . 57 × 10 7  beats 7 . 57 × 10 7  beats size 12{7 "." "57" times "10" rSup { size 8{7} } " beats"} {}

17.
  1. 3
  2. 3
  3. 3
19.

a) 2.2%2.2% size 12{3 "." 3%} {}

(b) 59 to 61 km/h59 to 61 km/h size 12{"59 to 61 km/h"} {}

21.

80 ± 3 beats/min 80 ± 3 beats/min size 12{"80" +- 3`"beats/min"} {}

23.

2 . 8 h 2 . 8 h size 12{2 "." 8" h"} {}

25.

11 ± 1 cm 3 11 ± 1 cm 3 size 12{"11" +- 1" cm" rSup { size 8{3} } } {}

27.

12 . 06 ± 0 . 04 m 2 12 . 06 ± 0 . 04 m 2 size 12{"12" "." "06" +- 0 "." "04"" m" rSup { size 8{2} } } {}

29.

Sample answer: 2×1092×109 size 12{2 times "10" rSup { size 8{9} } } {} heartbeats

31.

Sample answer: 2×10312×1031 size 12{2 times "10" rSup { size 8{"31"} } } {} if an average human lifetime is taken to be about 70 years.

33.

Sample answer: 50 atoms

35.

Sample answers:

(a) 10121012 size 12{"10" rSup { size 8{"12"} } } {} cells/hummingbird

(b) 10161016 size 12{"10" rSup { size 8{"16"} } } {} cells/human

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
  • If you are redistributing all or part of this book in a print format, then you must include on every physical page the following attribution:
    Access for free at https://openstax.org/books/college-physics-ap-courses/pages/1-connection-for-ap-r-courses
  • If you are redistributing all or part of this book in a digital format, then you must include on every digital page view the following attribution:
    Access for free at https://openstax.org/books/college-physics-ap-courses/pages/1-connection-for-ap-r-courses
Citation information

© Mar 3, 2022 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.