Homework Help is Here – Start Your Trial Now!
Science
Physics
At Colorado State University we are familiar with trains and their horns. You stand a safe distance next to the track and a train, which is 20 m away, travels towards you. You detect the train's horn at an intensity level of 120 dB and a frequency of 462 Hz. Multiple Choice Questions 7) You know that the train air horn is actually emitting sound at 440 Hz. How fast is the train moving towards you? a) 8 m/s b) 10 m/s c) 12 m/s d) 14 m/s e) 16 m/s f) 18 m/s 8) What distance would you need to be from the train for the sound intensity level to be 80 dB? a) 10 m b) 30 m Short Answer Question c) 100 m d) 700 m e) 1,300 m f) 2,000 m A locomotive (150,000 kg) has initial speed given by your answer to Question 7. It collides with a tanker car (50,000 kg) that is initially at rest; the two couple and move off together in a completely inelastic collision. . What is the speed (in m/s) of the two train cars immediately after the collision? . What is the energy dissipated (in J) during the collision? ⚫ If the collision lasts 2s, what is the average force (in N) of the collision?

At Colorado State University we are familiar with trains and their horns. You stand a safe distance next to the track and a train, which is 20 m away, travels towards you. You detect the train's horn at an intensity level of 120 dB and a frequency of 462 Hz. Multiple Choice Questions 7) You know that the train air horn is actually emitting sound at 440 Hz. How fast is the train moving towards you? a) 8 m/s b) 10 m/s c) 12 m/s d) 14 m/s e) 16 m/s f) 18 m/s 8) What distance would you need to be from the train for the sound intensity level to be 80 dB? a) 10 m b) 30 m Short Answer Question c) 100 m d) 700 m e) 1,300 m f) 2,000 m A locomotive (150,000 kg) has initial speed given by your answer to Question 7. It collides with a tanker car (50,000 kg) that is initially at rest; the two couple and move off together in a completely inelastic collision. . What is the speed (in m/s) of the two train cars immediately after the collision? . What is the energy dissipated (in J) during the collision? ⚫ If the collision lasts 2s, what is the average force (in N) of the collision?

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
See similar textbooks
icon
Related questions
Question
At Colorado State University we are familiar with trains and their horns. You stand a safe distance next to the track and a train, which is 20 m away, travels towards you. You detect the train's horn at an intensity level of 120 dB and a frequency of 462 Hz. Multiple Choice Questions 7) You know that the train air horn is actually emitting sound at 440 Hz. How fast is the train moving towards you? a) 8 m/s b) 10 m/s c) 12 m/s d) 14 m/s e) 16 m/s f) 18 m/s 8) What distance would you need to be from the train for the sound intensity level to be 80 dB? a) 10 m b) 30 m Short Answer Question c) 100 m d) 700 m e) 1,300 m f) 2,000 m A locomotive (150,000 kg) has initial speed given by your answer to Question 7. It collides with a tanker car (50,000 kg) that is initially at rest; the two couple and move off together in a completely inelastic collision. . What is the speed (in m/s) of the two train cars immediately after the collision? . What is the energy dissipated (in J) during the collision? ⚫ If the collision lasts 2s, what is the average force (in N) of the collision?
Transcribed Image Text:At Colorado State University we are familiar with trains and their horns. You stand a safe distance next to the track and a train, which is 20 m away, travels towards you. You detect the train's horn at an intensity level of 120 dB and a frequency of 462 Hz. Multiple Choice Questions 7) You know that the train air horn is actually emitting sound at 440 Hz. How fast is the train moving towards you? a) 8 m/s b) 10 m/s c) 12 m/s d) 14 m/s e) 16 m/s f) 18 m/s 8) What distance would you need to be from the train for the sound intensity level to be 80 dB? a) 10 m b) 30 m Short Answer Question c) 100 m d) 700 m e) 1,300 m f) 2,000 m A locomotive (150,000 kg) has initial speed given by your answer to Question 7. It collides with a tanker car (50,000 kg) that is initially at rest; the two couple and move off together in a completely inelastic collision. . What is the speed (in m/s) of the two train cars immediately after the collision? . What is the energy dissipated (in J) during the collision? ⚫ If the collision lasts 2s, what is the average force (in N) of the collision?
Expert Solution
steps

Step by step

Solved in 2 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON
SEE MORE TEXTBOOKS