![subject](/tpl/images/cats/mat.png)
Mathematics, 23.07.2019 10:30 redrosesxx
Which statement does not explain the concept of the doppler effect? a) as an observer approaches a stationary sound, the sound waves are compressed, making the pitch higher. b) as an observer moves away from a stationary sound, the sound waves are stretched making the pitch lower. c) as a sound source approaches a stationary object, the sound waves are compressed, making the pitch higher. d) as a sound source moves away from a stationary object, the sound waves
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 20.06.2019 18:04
Classify the polygon by its number of sides. state whether the polygon appears to be regular or not regular. a.heptagon, regular b. heptagon, not regular c. octagon, regular d. octagon, not regular
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:40
Which system of linear inequalities is represented by the graph?
Answers: 1
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:00
The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z
Answers: 2
You know the right answer?
Which statement does not explain the concept of the doppler effect? a) as an observer approaches a...
Questions
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.12.2020 23:00
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 10.12.2020 23:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.12.2020 23:00
![question](/tpl/images/cats/health.png)
Health, 10.12.2020 23:00
![question](/tpl/images/cats/mkx.png)
Arts, 10.12.2020 23:00
![question](/tpl/images/cats/en.png)
English, 10.12.2020 23:00
![question](/tpl/images/cats/en.png)
English, 10.12.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 10.12.2020 23:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/User.png)
SAT, 10.12.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 10.12.2020 23:00
![question](/tpl/images/cats/en.png)
English, 10.12.2020 23:00
![question](/tpl/images/cats/fr.png)
French, 10.12.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 10.12.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 10.12.2020 23:00
![question](/tpl/images/cats/mkx.png)