Problems 8, 9, & 10 refer to the 60 cm string, driven by a variable motor, portrayed in the figure on the right. When the motor drives the system at 45 Hz, the string creates the boel standing wave pattern shown. 60 cm 8. What is the wave speed for this medium? А. 60 m/s B. 48 m/s C. 30 m/s D. 18 m/s 8. 9. At what frequency should the motor be set to create a standing wave pattern with 5 anti-nodes (5 footballs)? А. 5 Hz В. 15 Hz С. 75 Hz D. 90 Hz 9. 10. By what factor should the tension in the string be increased in order to see only one football on the string (when driven at the same 45 Hz)? А. 3 В. 9 С. 1/3 D. 1/9 10.

Problems 8, 9, & 10 refer to the 60 cm string, driven by a variable motor, portrayed in the figure on the right. When the motor drives the system at 45 Hz, the string creates the boel standing wave pattern shown. 60 cm 8. What is the wave speed for this medium? А. 60 m/s B. 48 m/s C. 30 m/s D. 18 m/s 8. 9. At what frequency should the motor be set to create a standing wave pattern with 5 anti-nodes (5 footballs)? А. 5 Hz В. 15 Hz С. 75 Hz D. 90 Hz 9. 10. By what factor should the tension in the string be increased in order to see only one football on the string (when driven at the same 45 Hz)? А. 3 В. 9 С. 1/3 D. 1/9 10.

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)...

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