![subject](/tpl/images/cats/fizika.png)
Physics, 17.07.2019 22:10 cinthyafleitas
Apoint charge, magnitude q, is at the origin of a coordinate system. a second charge q is brought to distance r from the charge from a very large distance away, then is taken in a semicircle around the charge so that it is opposite where it was but at the same distance, then brought out to distance 2r. what is the work done on the moving charge by the electric field of the first charge?
(a)
w=qq/(8 pi epsilon_0 r)
(b)
w = qq/(4 pi epsilon_0 r)
(c)
w = qq/(16 pi epsilon_0 r)
(d)
w=0
![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, 21.06.2019 13:00
Jake has a nine month old son. how can he build his self esteem
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 08:00
Tafari worked one summer on a ship that set weather buoys in the ocean. he watched how one of the buoys moved in the water. describe which parts of the wave would cause the buoy to bob up and down. which wave property determined how fast the buoys bobbed in the water? he observed that when the wind blew harder, the ocean waves were larger, and the buoys moved away from the ship. what effect, if any, did the waves have on how far the buoys moved? explain your answer.
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 01:10
The path of a satellite orbiting the earth causes it to pass directly over two tracking stations a and b, which are 51 miles apart. when the satellite is on one side of the two stations, the angles of elevation at a and b are measured to be 87 degrees and 84 degrees, respectively. (a) how far is the satellite from station a? (b) how high is the satellite above the ground?
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 23.06.2019 02:30
What are two examples of phase changes that skip a phase during transition?
Answers: 1
You know the right answer?
Apoint charge, magnitude q, is at the origin of a coordinate system. a second charge q is brought to...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
Health, 05.05.2020 16:28
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 05.05.2020 16:28
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/fizika.png)
Physics, 05.05.2020 16:28
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 16:28
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 05.05.2020 16:28
![question](/tpl/images/cats/en.png)
English, 05.05.2020 16:28
![question](/tpl/images/cats/himiya.png)
Chemistry, 05.05.2020 16:29