![subject](/tpl/images/cats/fizika.png)
Physics, 19.06.2020 23:57 clinton1790
A stationary speed gun emits a microwave beam at 2.10*10^10Hz. It reflects off a car and returns 1030 Hz higher. What is the speed of the car?
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Physics
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 01:10, joejoefofana
Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?
Answers: 3
![image](/tpl/images/cats/fizika.png)
![image](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 09:00, cmflores3245
Sobre transformações cíclicas, são feitas algumas afirmações, determine quais estão corretas. i – a variação de energia interna em uma transformação cíclica é nula; ii – o trabalho, em uma transformação cíclica, é sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cíclica é, obrigatoriamente, composta de transformações conhecidas, como adiabática, isocórica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv
Answers: 1
You know the right answer?
A stationary speed gun emits a microwave beam at 2.10*10^10Hz. It reflects off a car and returns 103...
Questions in other subjects:
![Konu](/tpl/images/cats/biologiya.png)
Biology, 15.12.2020 02:40
![Konu](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 02:40
![Konu](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 02:40
![Konu](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 02:40
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 15.12.2020 02:40
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 15.12.2020 02:40
![Konu](/tpl/images/cats/en.png)
English, 15.12.2020 02:40