You And Some Friends Decide To Do An Experiment. You Purchase 3 Identical Sound Generators. One Is Placed Inside The Water At One End Of A 10 M Pool - The Second Is Placed At One End Of A 10 M Block Of Wood - And The Third Is Placed On A Table. Friend A Kneels At The Other End Of The Pool With Her Ear In The Water. Friend B Stands At The Other End Of The Block Of The Wood - With His Ear Pressed To It. Friend C Stands 10 M Away From The Table - With Only Air Between Herself And The Sound Generator. The Sound Generators Go Off At The Same Time. Which Friend Hears The Sound First?

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You And Some Friends Decide To Do An Experiment. You Purchase 3 Identical Sound Generators. One Is Placed Inside The Water At One End Of A 10 M Pool - The Second Is Placed At One End Of A 10 M Block Of Wood - And The Third Is Placed On A Table. Friend A Kneels At The Other End Of The Pool With Her Ear In The Water. Friend B Stands At The Other End Of The Block Of The Wood - With His Ear Pressed To It. Friend C Stands 10 M Away From The Table - With Only Air Between Herself And The Sound Generator. The Sound Generators Go Off At The Same Time. Which Friend Hears The Sound First?