Which of these materials would result in horizontally polarized light? OA.
O B.
OC.
OD.
OE.
reflection from a tall aluminum pole
refraction from a glass sheet
reflection from an iron shed
reflection from wet asphalt
refraction from a water surface

The correct answer is antinodes

Jenny and fred both play a long note on their trombones. a stationary observer hears the sound increasing and decreasing repeatedly in loudness. which of these must be true? the sound waves from the two trombones have slightly different frequencies.the sound waves from the two trombones have the same frequency.the sound waves from the two trombones have slightly different amplitudes.the sound waves from the two trombones have the same wavelength.the sound waves from the two trombones have slightly different velocities.  lolthe answer is          the sound waves from the two trombones have slightly different frequencies.