{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

pp20 - PHYSICS A World View Tuesday 5 April 2005 READ Ch...

Info icon This preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
PHYSICS: A World View Tuesday, 5 April 2005 READ Ch 16 (pp 336-340); PS 16: 5 PRAC Ch 16: Q 3, 7, 13, 35; E 7, 11 HW #20 Ch 16: Q 4, 18, 38; E 8 Th 7 Apr
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Exam #2 0 1 2 3 4 5 6 < 5 0 5 5 6 5 7 5 8 5 9 5 low = 47 average = 78 top = 96
Image of page 2
Standing Waves: Standing Waves: Only happens at certain frequencies Resonance phenomenon NODES:  points of zero vibration ANTINODES:  points of maximum  vibration
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Standing Waves λ /2 A N N 1 2 L λ = 1 Therefore, 2 L λ =
Image of page 4
Standing Waves N N N A A λ /2 2 2 L = λ = λ 1 2 2 2 L L λ λ = = = 2 = λ
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Standing Waves λ /2 3 2 L λ = 1 2 3 3 L λ λ = = 3 = λ
Image of page 6
Summary 1 1 1 2 1 3 1 4 2 1 1 2 2 2 2 3 3 2 4 4 L L L L λ λ = = λ λ = = λ λ = = λ λ = = 1 1 1 1 2 f L v v f = = = λ v f = λ 2 1 2 2 2 2 v v f f L = = = λ 1 3 3 3 2 3 f L v v f = = = λ 1 4 4 4 2 4 f L v v f = = = λ
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 8
     One end of a hacksaw blade is clamped  to a post.  The other end is free.  Draw  graphs showing the two lowest harmonics  that can occur on the hacksaw blade.   What is the wavelength of each harmonic  in comparison to the length  L   of the  blade?
Image of page 9

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
In-Class Activity N A N N A A 1 4 L λ = 4 L λ = fundamental 3 4 L λ = 4 3 L λ = third harmonic
Image of page 10
Which harmonics resonate?
Image of page 11

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 12
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern