Physics
Physics, 12.07.2019 19:20, armstrongstang420

(a) for an ideal plane electromagnetic wave in vacuum, show that the energy crossing an area a in 1 second, with a normal to the direction of propaga- tion, is equal to the total field energy within a cylinder with base a and height 3 x 108 m. (b) show that cuav and explain this result in terms of conservation of energy.

answer
Answers: 1

Other questions on the subject: Physics

image
Physics, 22.06.2019 00:30, chayaharroch03
Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)
Answers: 1
image
Physics, 22.06.2019 03:00, vinp190p9zekn
Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot
Answers: 1
image
Physics, 22.06.2019 11:30, alexandroperez13
With the simplified model of the eye, what corrective lens (specified by focal length as measured in air) would be needed to enable a person underwater to focus an infinitely distant object? (be careful-the focal length of a lens underwater is not the same as in air! assume that the corrective lens has a refractive index of 1.62 and that the lens is used in eyeglasses, not goggles, so there is water on both sides of the lens. assume that the eyeglasses are 1.90
Answers: 1
image
Physics, 22.06.2019 16:00, Andrebutrus
The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?
Answers: 3
Do you know the correct answer?
(a) for an ideal plane electromagnetic wave in vacuum, show that the energy crossing an area a in 1...

Questions in other subjects:

Konu
Chemistry, 27.04.2021 19:20