http://phet.colorado.edu/sims/wave-on-a-string/wave-on-a-string_en.html

26. 26. Choose the amplitude (in cm) below in Table 1 in the first row.
27 cm
9 cm
18 cm

Question

http://phet.colorado.edu/sims/wave-on-a-string/wave-on-a-string_en.html

26. 26. Choose the amplitude (in cm) below in Table 1 in the first row.
27 cm
9 cm
18 cm

anonymous · Answer

the 27, 9 and 18 cm are the possible answers. i am confused on how to find it on the site i posted :/

jamesj · Answer

I'm confused by this question as well.   It appears you can make the amplitude in the demonstration just about anything you want.

anonymous · Answer

hmm.. i'll try and figure it out. thanks. haha i suck at physics :/