Finding the amplitude with frequency and wavelength.

Thread starter sungjoooneee
Start date Aug 9, 2008
Tags

Amplitude Frequency Wavelength

Click For Summary

SUMMARY

The discussion focuses on calculating the wave speed using the formula speed = wavelength x frequency. Given a frequency of 190 Hz and a wavelength of 26.2 cm, participants confirm that the maximum speed of particles on the cord equals the wave speed. This relationship is fundamental in wave mechanics and is crucial for understanding wave behavior in various mediums.

PREREQUISITES

Understanding of wave mechanics
Familiarity with the formula for wave speed
Basic knowledge of frequency and wavelength
Ability to perform unit conversions (e.g., cm to meters)

NEXT STEPS

Research wave speed calculations in different mediums
Explore the relationship between frequency, wavelength, and amplitude
Learn about particle motion in waves
Study the effects of tension and mass on wave speed in cords

USEFUL FOR

Students studying physics, educators teaching wave mechanics, and anyone interested in the principles of wave behavior and calculations.

Aug 9, 2008

sungjoooneee

A wave with a frequency of 190 Hz and a wavelength of 26.2 cm is traveling along a cord. The maximum speed of particles on the cord is the same as the wave speed.

speed = wavelength X frequency

Physics news on Phys.org

Aug 10, 2008

cristo

Staff Emeritus

Science Advisor

Ok, so what do you want to calculate? What does the question say, exactly?

Thread 'Magnitude of buoyant force in fluids of different densities'

The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

View full post »