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Question 1 (1 point) Two sound waves, travelling in opposite directions, arrive at the same point in space. At that point, these waves bounce off each other. pass through each other. mutually destroy each other. move away from that point as a single wave.

Question 2 (1 point) The axiom of superposition states that when two pulses occupy the same point in a medium, the speed of the medium at that point is the algebraic sum of the speeds of the medium for the individual pulses. the kinetic energy at that point in the medium is the sum of the kinetic energies of the individual pulses. the displacement at that point in the medium is the algebraic sum of the displacements of the individual pulses. the elastic potential energy at that point in the medium is the sum of the elastic potential energies of the individual pulses.

Question 3 (1 point) Which of the following conditions are required for two waves to create a standing wave in a spring? 1. The waves must be travelling in opposite directions. II. The waves must have equal amplitudes. III. The waves must have equal wavelengths. I and Ill only O I and Il only II and Ill only O., I, II, and III