\fCONCLUSION: What does the frequency of standing waves on a string depend on? State your results and observations. QUESTIONS: 1. Show that (3) is the result of adding (1) and (2) 2. What are the factors that contribute to the error? Does the portion of the string hanging from the pulley affect the results of your experiment? Discuss. 3. Set standing waves with 4 loops. Without changing the driving frequency or the hanging masses, find a way to change the number of loops. Explain your method and results