The frequency of a note played on a piano is 214 Hz. Given that the velocity of sound at 20°C is 343 m/s, what is the wavelength of the note?

What happens to atoms and chemical bonds during a reaction?

Aplane takes off from an airport and flies to town a, located d1 = 215 km from the airport in the direction 20.0° north of east. the plane then flies to town b, located d2 = 230 km at 30.0° west of north from town a. use graphical methods to determine the distance and direction from town b to the airport. (enter the distance in km and the direction in degrees south of west.)

If vx = 7.00 units and vy = -7.60 units, determine the magnitude of v⃗ . determine the direction of v⃗ .