![subject](/tpl/images/cats/fizika.png)
Physics, 23.12.2019 20:31 harleyandpope90
Two train whistles have identical frequencies of 1.80 ∗ 102 hz. when one train is at rest in the station and the other is moving nearby, a commuter standing on the station platform hears beats with a frequency of 2.00 beats per second when the whistles operate together. what are the possible speeds and directions that the moving train can have? [3.85 m/s or 3.77 m/s]
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Physics
![image](/tpl/images/cats/fizika.png)
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 07:20, hardwick744
If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?
Answers: 3
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:20, avree4722
Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.
Answers: 3
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 20:30, sza2016
This is a form of winter precipitation. it is frozen precipitation falling as ice pellets. snowflakes melt into raindrops as they pass through a thin layer of warmer air. the raindrops then refreeze into particles of ice when they fall into a layer of sub-freezing air near the surface of the earth. this precipitation is called a) hail. b) rain. c) sleet. d) snow.
Answers: 1
You know the right answer?
Two train whistles have identical frequencies of 1.80 ∗ 102 hz. when one train is at rest in the sta...
Questions in other subjects:
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 01:40
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 01:40
![Konu](/tpl/images/cats/obshestvoznanie.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 01:40
![Konu](/tpl/images/cats/mkx.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 12.02.2021 01:40
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 01:40
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 12.02.2021 01:40