Would the resonance positions be changed if a tuning fork of different frequency were used?

Yes, the resonance positions would change if a tuning fork of a different frequency were used. Resonance occurs when an object vibrates at its natural frequency, and each tuning fork has a specific frequency. Using a tuning fork with a different frequency would excite different modes of vibration in the system, resulting in a shift in the resonance positions. Thus, the specific frequencies at which resonance occurs would depend on the tuning fork used.