What does "superimposition" mean?
Superimposition is when two transverse waves come together, and their frequencies cancel each other out. If the waves are completely superimposed, the resultant wave is 0.
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What are the different ways that energy can be transferred?
A rock fragment weighing 50N is displaced from the top of a cliff and falls 0.12 km to the ground. Calculate the kinetic energy (in J) of the rock just before it hits the ground. Assume air resistance is negligible.
