![subject](/tpl/images/cats/fizika.png)
Physics, 03.07.2019 18:10 Har13526574
The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.724 w/m2. what is the maximum value of the magnetic field in the wave? (c=3.0Ć108m/s, Ī¼0=4ĻĆ10ā7tā m/a, Īµ0=8.85Ć10ā12c2/nā m2)
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/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 14:00
Rank the torques on the five doors shown in the figure above from least to greatest. note that the magnitude of all the forces is the same
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 05:10
Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.
Answers: 3
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 08:00
Which notation is used to represent an alpha particle? a. b. c. d.
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 10:40
As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.
Answers: 1
You know the right answer?
The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.724...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/es.png)
Spanish, 03.08.2019 14:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 03.08.2019 14:00
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/istoriya.png)
History, 03.08.2019 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 03.08.2019 14:00
![question](/tpl/images/cats/mkx.png)
Arts, 03.08.2019 14:00
![question](/tpl/images/cats/mat.png)
Mathematics, 03.08.2019 14:00
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 03.08.2019 14:10
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 03.08.2019 14:10
![question](/tpl/images/cats/himiya.png)