KArbvikaa8y KArbvikaa8y

13-11-2016
Physics

contestada

How can a megaphone used by a cheerleader allow people on the opposite side of a field to hear her better?

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yolandaam yolandaam

13-11-2016

The megaphone is cupping the area around her mouth and it is like with your hands, if you cover around them the noise will be louder. It is because it is hollow and there isn't anything to block the noise through the megaphone.

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