Question

before release after release the resulting wave travels back and forth between the two fixed ends of the spring until it comes to a stop. this mechanical wave is an example of a transverse wave refracted superposition wave longitudinal wave

Explanation:

• Transverse wave: Particles move perpendicular to wave direction.
• Refracted: Wave bending when entering a new medium (not relevant here).
• Superposition wave: Wave combination (not the main concept here).
• Longitudinal wave: Particles move parallel to wave direction. In the spring, the wave (compressions and rarefactions) moves parallel to the spring's length, which is characteristic of a longitudinal wave.

Answer:

longitudinal wave