You walk 200m south, then 50m east. What is your displacement?

The equation that describes a transverse wave on a string is y = (0.0120 m)sin[(927 rad/s)t - (3.00 rad/m)x] where y is the displacement of a string particle and x is the position of the particle on the string. the wave is traveling in the +x direction. what is the speed v of the wave?

Asample of a gaseous substance changes into a liquid

Phase changes are chemical changes. true or false