a friend tells you a way to estimate how far away a lightning bolt strikes. You count the number of seconds between seeing the flash and hearing the thunderclap. Then you divide that number by five to get a distance in miles. In terms of the physics of light and sound waves, does the method make sense?

Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.

Which statement is best supported by the information in the chart? wave y is moving the fastest. wave x is moving the fastest. all of the waves are moving at the same speed. all of the waves have the same value of wavelengths per second.

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