When you walk past an open door of a room in your house in
When you walk past an open door of a room in your house in which a person is speaking, you can hear the person long before you can see him. Why? What does this tell you about the wavelengths of light and sound?
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when you walk past an open door of a room in your house in which a person is speaking you can hear the person long
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recommendation treatment plan for a 13 years old female with diagnosis Autism spectrum disorder, Attention-deficit/hyperactivity disorder
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