(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A 403 Hz wave travels at 200 m/s along a wire.

a)At a given time, the distance between points that differ in phase by 1.9 rad is ___ m.

b)At a given position, the change in phase during an interval of 4.8 ms is ___ rad.

2. Relevant equations

V=w/k

w=2pif

3. The attempt at a solution

I 've already solved for a), it was pretty straight forward. Now, I'm stuck on b)

w=2pif

=2pi*403

=806pi

v=w/k

k=w/v

=806pi/200

=4.03pi

delta phi = x/k

= 1.9/4.03pi

=0.15m

this was for number 1... now I'm stuck on b)

pls help....

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Mechanical waves question.

**Physics Forums | Science Articles, Homework Help, Discussion**