![subject](/tpl/images/cats/fizika.png)
Physics, 28.02.2020 19:45 nate102201
You are standing on a train station platform as a train goes by close to you. As the train approaches, you hear the whistle sound at a frequency of f1 = 98 Hz. As the train recedes, you hear the whistle sound at a frequency of f2 = 76 Hz. Take the speed of sound in air to be v = 340 m/s(a) Find an equation for the speed of the sound source v., in this case it is the speed of the train. Express your answer in terms of f2. and v.
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/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 20:00
The sun generates both mechanical and electromagnetic waves. which statement about those wave is true?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 23:30
The velocity of car is 80.0 miles per hour. what is the velocity of car in meters per second? (1 km -0.621 miles) m/s
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 01:30
Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 12:10
Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f
Answers: 2
You know the right answer?
You are standing on a train station platform as a train goes by close to you. As the train approache...
Questions
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 04.02.2020 19:43
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 04.02.2020 19:43
![question](/tpl/images/cats/istoriya.png)
History, 04.02.2020 19:43
![question](/tpl/images/cats/mat.png)
Mathematics, 04.02.2020 19:43
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 04.02.2020 19:44
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/fizika.png)
Physics, 04.02.2020 19:44
![question](/tpl/images/cats/istoriya.png)
History, 04.02.2020 19:44
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 04.02.2020 19:44
![question](/tpl/images/cats/himiya.png)
Chemistry, 04.02.2020 19:44