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PLEASE HELP AND I WILL GIVE BRAINLIEST
Mac and Suzanne cut holes in the bottom of two cups and connect them with a string. When Mac whispers into one cup,
Suzanne can hear him through the other. What is the best reason to explain why this happens?
A
Sound waves produce an echo.
B
Sound waves can travel great distances.
Sound waves travel better through solids than gases.
D
Sound waves from whispering have a higher frequency

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nattymdsn523

Answer:

A: Sound waves produce an echo

Explanation:

because the cup is a hard smooth surface you can hear the voice

Answer:

Answer is D

Explanation:

The sound travels along the string as a longitudinal wave and ultimately vibrates the bottom of the receiving cup. The cup transmits the sound into the air around the listener's ear, allowing her to hear the speaker.

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