If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.
Post a reply to the thread: Physics 101 wave interference?
Click here to log in
What comes after M0nday
You may choose an icon for your message from this list
Will turn www.example.com into [URL]http://www.example.com[/URL].
You may rate this thread from 1-star (Terrible) to 5-stars (Excellent) if you wish to do so.
The answer is 8.325 m/s. you take 3 loops divided by 2--> 3/2 equals 1.5m. Then you divide 1.5m into 5 meters of slinky--> 5m/1.5 = 3.33m. Then because of the equation of speed, V(speed)=wavelength x frequency. Our wavelength is 3.33m, and the frequency is the HZ (remember cycles per second?). so therefore, speed= 3.33m * 2.5 HZ. The answer then becomes 8.325 m/s.
Physics 101 wave interference? An instructor gives a demonstration in which he makes a standing wave on a long thin slinky. The slinky is 5 meters long. If you see 3 loops on the slinky when the instructor shakes the end of the slinky at a rate of 2.5 cycles per second, then the speed of transverse waves on the slinky is (Answer in m/s) I know the answer is NOT 6.25 m/s, even though I have found that answer on the internet. My online homework says that is wrong. I'm thinking the answer is 12.5 from the formula speed= frequency x wavelength but im not sure. Can someone help me out please?! I also tried the answer 4.166 and that was wrong too :-(
Physics 101 wave interference?
Forum Rules
