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A bus drives 40.0 km [E] from town A to town B, then another 30.0 km [N] to town C in a total time of 1.00 h. What are the values of its average speed and average velocity, respectively? a) 70 km/h, 70 km/h [37° S of E] d) 70 km/h, 50 km/h [37° N of E] b) 70 km/h, 50 km/h [37° S of E] e) 50 km/h [37° S of E], 70 km/h c) 50 km/h, 50 km/h [37° S of E] A student in a lab exerts a 25 N force to pull a block a distance of 48 cm. If a total of 10 J of work is done, the angle between the force and the displacement is a) 89° b) 66° c) 61° d) 24° e) none of these A book is at rest on a desk. Which of the following statements concerning the book is correct? a) The book exerts no force on the desk. b) The forces acting on the book are balanced. c) There are no forces acting on the book. d) The desk exerts no force on the book. e) None of the above statements is correct. Consider the following observations: Two point charges (with the same magnitude) are labeled A and B. Charge A is due south of charge B. A proton is placed at rest at the mid- point on a line connecting the two point charges. The proton travels due south. Which one of the following statements correctly indicates the signs of the two charges? a) Charge A is positive and charge B is negative. b) Charge A is positive and charge B is positive. c) Charge A is negative and charge B is positive. d) Charge A is negative and charge B is negative. What is the angle of refraction when the angle of incidence is equal to the critical angle? a) 0° b) 30° c) 90° d) 45° e) It depends on the index of refraction.

A bus drives 40.0 km [E] from town A to town B, then another 30.0 km [N] to town C in a total time of 1.00 h. What are the values of its average speed and average velocity, respectively? a) 70 km/h, 70 km/h [37° S of E] d) 70 km/h, 50 km/h [37° N of E] b) 70 km/h, 50 km/h [37° S of E] e) 50 km/h [37° S of E], 70 km/h c) 50 km/h, 50 km/h [37° S of E] A student in a lab exerts a 25 N force to pull a block a distance of 48 cm. If a total of 10 J of work is done, the angle between the force and the displacement is a) 89° b) 66° c) 61° d) 24° e) none of these A book is at rest on a desk. Which of the following statements concerning the book is correct? a) The book exerts no force on the desk. b) The forces acting on the book are balanced. c) There are no forces acting on the book. d) The desk exerts no force on the book. e) None of the above statements is correct. Consider the following observations: Two point charges (with the same magnitude) are labeled A and B. Charge A is due south of charge B. A proton is placed at rest at the mid- point on a line connecting the two point charges. The proton travels due south. Which one of the following statements correctly indicates the signs of the two charges? a) Charge A is positive and charge B is negative. b) Charge A is positive and charge B is positive. c) Charge A is negative and charge B is positive. d) Charge A is negative and charge B is negative. What is the angle of refraction when the angle of incidence is equal to the critical angle? a) 0° b) 30° c) 90° d) 45° e) It depends on the index of refraction.

University Physics Volume 1
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter2: Vectors
Section: Chapter Questions
Problem 31P: In an attempt to escape a desert island, a castaway builds a raft and sets out to sea. The wind...
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A bus drives 40.0 km [E] from town A to town B, then another 30.0 km [N] to town C in a total time of 1.00 h. What are the values of its average speed and average velocity, respectively? a) 70 km/h, 70 km/h [37° S of E] d) 70 km/h, 50 km/h [37° N of E] b) 70 km/h, 50 km/h [37° S of E] e) 50 km/h [37° S of E], 70 km/h c) 50 km/h, 50 km/h [37° S of E] A student in a lab exerts a 25 N force to pull a block a distance of 48 cm. If a total of 10 J of work is done, the angle between the force and the displacement is a) 89° b) 66° c) 61° d) 24° e) none of these A book is at rest on a desk. Which of the following statements concerning the book is correct? a) The book exerts no force on the desk. b) The forces acting on the book are balanced. c) There are no forces acting on the book. d) The desk exerts no force on the book. e) None of the above statements is correct. Consider the following observations: Two point charges (with the same magnitude) are labeled A and B. Charge A is due south of charge B. A proton is placed at rest at the mid- point on a line connecting the two point charges. The proton travels due south. Which one of the following statements correctly indicates the signs of the two charges? a) Charge A is positive and charge B is negative. b) Charge A is positive and charge B is positive. c) Charge A is negative and charge B is positive. d) Charge A is negative and charge B is negative. What is the angle of refraction when the angle of incidence is equal to the critical angle? a) 0° b) 30° c) 90° d) 45° e) It depends on the index of refraction.
Transcribed Image Text:A bus drives 40.0 km [E] from town A to town B, then another 30.0 km [N] to town C in a total time of 1.00 h. What are the values of its average speed and average velocity, respectively? a) 70 km/h, 70 km/h [37° S of E] d) 70 km/h, 50 km/h [37° N of E] b) 70 km/h, 50 km/h [37° S of E] e) 50 km/h [37° S of E], 70 km/h c) 50 km/h, 50 km/h [37° S of E] A student in a lab exerts a 25 N force to pull a block a distance of 48 cm. If a total of 10 J of work is done, the angle between the force and the displacement is a) 89° b) 66° c) 61° d) 24° e) none of these A book is at rest on a desk. Which of the following statements concerning the book is correct? a) The book exerts no force on the desk. b) The forces acting on the book are balanced. c) There are no forces acting on the book. d) The desk exerts no force on the book. e) None of the above statements is correct. Consider the following observations: Two point charges (with the same magnitude) are labeled A and B. Charge A is due south of charge B. A proton is placed at rest at the mid- point on a line connecting the two point charges. The proton travels due south. Which one of the following statements correctly indicates the signs of the two charges? a) Charge A is positive and charge B is negative. b) Charge A is positive and charge B is positive. c) Charge A is negative and charge B is positive. d) Charge A is negative and charge B is negative. What is the angle of refraction when the angle of incidence is equal to the critical angle? a) 0° b) 30° c) 90° d) 45° e) It depends on the index of refraction.
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