Standing Waves Homework: A Tuning Fork, a String and a Hanging Mass

[chessmaster62]

Homework Statement

idk

Relevant Equations

v=f(frequency)

Hi guys,
so I am struggling on the Standing Waves concept. I understand that these are waves that move in place but I don't know how to attempt this problem. Can someone set me on the right track?

 

[BvU]

Hello chessmaster, !

PF culture (and the rules too) requires an effort from you before we can help.
write down the relevant relationships for the two cases and see if things cancel (divide out)