• Support PF! Buy your school textbooks, materials and every day products Here!

Wave Superposition

  • Thread starter kpou
  • Start date
  • #1
25
0

Homework Statement


Two waves are produced on a string with length of 1m. Wavelength of one is .5m Wavelength of the other is .2m. Amplitude and velocity are the same.
Show that 2Asin(7pi(x + vt)) cos(3pi(x + vt)).
At t=0 what locations are the max/min displacement at?

Homework Equations





The Attempt at a Solution


I can solve the first part no problem. We have Eq we needed to show. Then I take z'(x) and have 2pi*A(2cos(4pi*x)+5cos(10pi*x)) and = 0 to get crit points.. This is where I am stuck. My calculator is unable to compute the graph at such small y apparently. I was unfortunately unable to find anything on the internet on how to solve this. Any help would be greatly appreciated.
 

Answers and Replies

  • #2
25
0
So ya I fixed my calculator, problem solved ><
 

Related Threads on Wave Superposition

  • Last Post
Replies
1
Views
4K
  • Last Post
Replies
1
Views
463
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
4
Views
1K
  • Last Post
Replies
3
Views
881
  • Last Post
Replies
10
Views
3K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
4
Views
1K
Top