![subject](/tpl/images/cats/fizika.png)
Physics, 19.03.2020 21:22 ayoismeisalex
The mass of an electron is 9.11×10−31 kg9.11×10−31 kg. If the de Broglie wavelength for an electron in a hydrogen atom is 3.31×10−10 m3.31×10−10 m, how fast is the electron moving relative to the speed of light? The speed of light is 3.00×108 m/s3.00×108 m/s. Express your answer numerically as a percent.
![ansver](/tpl/images/cats/User.png)
Answers: 2
Another question on Physics
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 05:00
Does work output exceed work input when a machine is used? a) yes, it does, as machines create energy. b) it depends on the type of machine used. c) no, it doesn’t, as machines are inefficient. d) no, it doesn’t, as machines cannot create energy.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 16:00
What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 16:00
At what time will the interfering waves have an amplitudeof zero?
Answers: 1
You know the right answer?
The mass of an electron is 9.11×10−31 kg9.11×10−31 kg. If the de Broglie wavelength for an electron...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 20.09.2020 01:01
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 01:01
![question](/tpl/images/cats/biologiya.png)
Biology, 20.09.2020 01:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 01:01
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 01:01
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 01:01
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 01:01
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 01:01
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 01:01
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.09.2020 01:01