![subject](/tpl/images/cats/fizika.png)
A commuter train passes a passenger platform at a constant speed of 40.0 m/s. The train horn is sounded at its characteristic frequency of 320 Hz.
(a) What overall change in requency is detected by a person on the platform as the train moves from approaching to receding?
(b) What wavelength is detected by a person on the platform as the train approaches?
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 23:00
How is acceleration calculated? a. initial velocity - final velocity / timeb. initial velocity + final velocity / timec. final velocity - initial velocity / timed. final velocity / timele select the best answer from the choices provided0oood00save and exitnextmark this and return
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 14:00
Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:30
What is a costume plot? why is it important to a film or theater production?
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:30
What is a subatomic particle with a negative charge and very little mass?
Answers: 1
You know the right answer?
A commuter train passes a passenger platform at a constant speed of 40.0 m/s. The train horn is soun...
Questions
![question](/tpl/images/cats/health.png)
Health, 28.01.2020 16:45
![question](/tpl/images/cats/mat.png)
Mathematics, 28.01.2020 16:45
![question](/tpl/images/cats/istoriya.png)
History, 28.01.2020 16:45
![question](/tpl/images/cats/istoriya.png)
History, 28.01.2020 16:45
![question](/tpl/images/cats/istoriya.png)
History, 28.01.2020 16:45
![question](/tpl/images/cats/biologiya.png)
Biology, 28.01.2020 16:45
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.01.2020 16:45
![question](/tpl/images/cats/mat.png)
Mathematics, 28.01.2020 16:45
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/health.png)
Health, 28.01.2020 16:45
![question](/tpl/images/cats/mat.png)
Mathematics, 28.01.2020 16:45
![question](/tpl/images/cats/mat.png)
Mathematics, 28.01.2020 16:45
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 28.01.2020 16:45