Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 17: 2. (page 482)

If you take snapshots of a standing wave on a string, there are certain instants when the string is totally flat. What has happened to the energy of the wave at those instants?

Short Answer

Expert verified

All the energy at those instants is in the form of Kinetic energy.

Step by step solution

01

Description of Energy

Total energy can be expressed as sum of potential and kinetic energy.

02

Energy at mean position

We know that at mean positions maximum energy of the system exists in the form of kinetic energy. Therefore at these instants when the string goes flat (all particles of the string are in their mean positions), maximum energy exists in the form of kinetic energy in the string.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Deep-sea divers often breathe a mixture of helium and oxygen to avoid getting the “bends” from breathing high-pressure nitrogen. The helium has the side effect of making the divers’ voices sound odd. Although your vocal tract can be roughly described as an open-closed tube, the way you hold your mouth and position your lips greatly affects the standing-wave frequencies of the vocal tract. This is what allows different vowels to sound different. The “ee” sound is made by shaping your vocal tract to have standing- wave frequencies at, normally, 270 Hz and 2300 Hz. What will these frequencies be for a helium-oxygen mixture in which the speed of sound at body temperature is 750 m/s? The speed of sound in air at body temperature is 350 m/s.

A very thin oil film n=1.25floats on watern=1.33.

What is the thinnest film that produces a strong reflection for

green light with a wavelength of 500 nm?

A bass clarinet can be modeled as a 120-cm-long open-closed tube. A bass clarinet player starts playing in a 20°C room, but soon the air inside the clarinet warms to where the speed of sound is 352 m/s. Does the fundamental frequency increase or decrease? By how much?

A 75 g bungee cord has an equilibrium length of 1.20 m. The

cord is stretched to a length of 1.80 m, then vibrated at 20 Hz. This

produces a standing wave with two antinodes. What is the spring

constant of the bungee cord?

A metal wire under tension T0 vibrates at its fundamental

frequency. For what tension will the second-harmonic frequency

be the same as the fundamental frequency at tension T0?
See all solutions

Recommended explanations on Physics Textbooks

Mechanics and Materials

Read Explanation

Torque and Rotational Motion

Read Explanation

Measurements

Read Explanation

Electrostatics

Read Explanation

Nuclear Physics

Read Explanation

Force

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free