PLEASE HELP: A person stands 6.00 m from a
speaker, and 8.00 m from an
identical speaker. What is the
wavelength of the first (n=1)
interference maximum
(constructive)?
(Speed of sound = 343 m/s)
(Unit = m)

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?

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Suppose you increase your walking speed from 7 m/s to 13 m/s in a period of 2 s. what is your acceleration?