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

Simple Harmonic Motion-Help Please

  • Thread starter ladolce
  • Start date
  • #1
56
0
Simple Harmonic Motion-Help Please :)

Homework Statement



A loundspeaker diaphragm is producing a sound for 1.5 s by moving back and forth in a simple harmonic motion. The angular frequency of the motion is 8.50 104 rad/s. How many times does the diaphragm move back and forth?

________ times

Homework Equations



ang.freq.=2pi/T

f=1/T

The Attempt at a Solution



Ok, so I plugged in w=85000rad/s and t=1.5s and got T=0.00007392 and f=13528.139 cycles/sec and

multiplied that f i got by 1.5 sec to get 200292.209 cycles which is wrong..

I dont know what i did wrong...can someone help?
 

Answers and Replies

  • #2
100
0
Everything looks right, except f * 1.5s = 20292.209 not 200292.209
 
  • #3
56
0
thanks!!!! i always make dumb mistakes like that haha..
 

Related Threads on Simple Harmonic Motion-Help Please

  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
4
Views
2K
  • Last Post
Replies
1
Views
1K
Replies
8
Views
7K
Replies
12
Views
1K
Replies
1
Views
1K
Replies
3
Views
3K
Replies
5
Views
3K
Replies
1
Views
2K
Top