Physics, 19.05.2021 21:30, aksatx4035
A seismologist who studies earthquakes sees that a seismic wave that traveled 500 km through Earth changed
speeds multiple times. What conclusion can be drawn from this observation? (1 point)
O The seismic wave's wavelength remained constant.
O The seismic wave's frequency also changed multiple times.
O As the wave passed through less dense material, the wavelength decreased.
o As the wave passed through less dense material, the speed of the wave increased.
Answers: 3
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 16:30, makaylahamrick
Which magnetic property best describes a magnet’s ability to act at a distance? magnets are dipolar. magnets attract only certain objects. magnets have magnetic fields. magnets can transfer their properties to certain materials.
Answers: 1
A seismologist who studies earthquakes sees that a seismic wave that traveled 500 km through Earth c...
Social Studies, 29.08.2019 15:30
English, 29.08.2019 15:30
Mathematics, 29.08.2019 15:30
Mathematics, 29.08.2019 15:30
Biology, 29.08.2019 15:30
Mathematics, 29.08.2019 15:30
Geography, 29.08.2019 15:30