Explain! 10 points! a note has a wavelength of 0.77955 m. if the speed of sound is 343.00 m/s, what pitch is this note?

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?

Argon, neon, and xenon are examples of