HELP NOW PLZ ANSWER MY QUESTION I ONLY GOT 10 MINUTES LEFTI WILL MARK THE BRAINLEST PERSON TO GET IT JUST PLZ HELP Use the model below to explain how the sound from the ambulance’s siren appears to change as it drives past the girl. Why does the girl hear the sound differently as the ambulance travels past her?

Develop your claim of why the girl hears the sound differently as the ambulance travels past her. *

The girl hears the ambulance sound different. The first part of the picture shows the girl and the sound waves, and they are right in front of her, so she cannot hear them as well. But the second image shows the girl in the middle of the sound waves. This is the strongest and loudest part of the sound waves, so it sounds different to the girl in the image.

Also, in the first image, the sound waves would most likely sound higher than in the second image. The sound would continue to get lower in frequency the father it drove away. This is because of the Doppler Effect. The Doppler Effect refers to the change in wave frequency during the relative motion between a wave source and its observer.

Explanation:

answer: - b cells

explanation: -

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.

the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.