Do EM Waves have to have a
medium?...
![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, 22.06.2019 12:10
Two forces produce equal torques on a door about the door hinge. the first force is applied at the midpoint of the door; the second force is applied at the doorknob. both forces are applied perpendicular to the door. which force has a greater magnitude?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 14:00
If element x has 99 protons how many electrons does it have
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 14:30
An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet.whats one advantage of using electromagnetic in devices
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 01:30
Acyclotron is used to produce a beam of high-energy deuterons that then collide with a target to produce radioactive isotopes for a medical procedure. deuterons are nuclei of deuterium, an isotope of hydrogen, consisting of one neutron and one proton, with total mass 3.34×10−27kg. the deuterons exit the cyclotron with a kinetic energy of 6.40 mev .a-what is the speed of the deuterons when they exit? b-if the magnetic field inside the cyclotron is 1.25 t, what is the diameter of the deuterons' largest orbit, just before they exit? c-if the beam current is 350 μa how many deuterons strike the target each second?
Answers: 3
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 24.04.2020 01:57
![question](/tpl/images/cats/mat.png)
Mathematics, 24.04.2020 01:57
![question](/tpl/images/cats/mat.png)
Mathematics, 24.04.2020 01:57
![question](/tpl/images/cats/mat.png)
Mathematics, 24.04.2020 01:57
![question](/tpl/images/cats/mat.png)
Mathematics, 24.04.2020 01:57
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
English, 24.04.2020 01:57
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 24.04.2020 01:58
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/istoriya.png)
History, 24.04.2020 01:58
![question](/tpl/images/cats/en.png)
English, 24.04.2020 01:58
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 24.04.2020 01:58
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 24.04.2020 01:58