Physics, 20.04.2020 19:56, bryan519688
A plane monochromatic radio wave (? = 0.3 m) travels in vacuum along the positive x-axis, with a time-averaged intensity I = 45.0 W/m2. Suppose at time t = 0, the electric field at the origin is measured to be directed along the positive y-axis with a magnitude equal to its maximum value. What is Bz, the magnetic field at the origin, at time t = 1.5 ns? Bz = I got .04800 but that answer didnt work.
Answers: 3
Physics, 21.06.2019 20:20, jazmaine1217
When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation
Answers: 2
Physics, 22.06.2019 06:40, PerfectMagZ
Alinearly polarized electromagnetic wave has an average intensity of 196 w/m^2. this wave is directed towards two ideal polarizers (in real polarizers, transmission is also effected by reflection and absorption). polarizer a is oriented with its transmission axis at an angle of θ_1=20.8∘ with the incident electric field. polarizer b has its axis at an angle of θ_2=63.0∘ with the incident electric field. what is the average intensity of the wave after it passes through polarizer a? what is the average intensity of the wave after it passes through polarizer b? suppose that the two polarizers a and b are interchanged. what would the average intensity be after passing through both polarizers?
Answers: 2
Physics, 22.06.2019 10:00, squirrel6875
There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.
Answers: 1
A plane monochromatic radio wave (? = 0.3 m) travels in vacuum along the positive x-axis, with a tim...
Mathematics, 28.02.2020 19:12