Asound wave in air has a pressure amplitude equal to 3.92 x 103 n/m2. calculate the displacement amplitude of the wave at a frequency of 9.2 khz. (note: use the 1.20 kg/m3; the speed of sound in air is v 343 m/s. pressure variations ap are measured relative to following values, as needed. the equilibrium density of air is p atmospheric pressure, 1.013 x 105 pa.)

Which device uses ac current to operate?

The average density of the planet uranus is 1.27 103 kg/m3. the ratio of the mass of neptune to that of uranus is 1.19. the ratio of the radius of neptune to that of uranus is 0.969. find the average density of neptune.

Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?