What makes a force balanced? What is the net force when balanced?

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.)

The passing of heat through a material while the material itself stays in place. a. radiation b. conduction c. convection

Awave is produced in a rope. the wave has a speed of 33 m/s and a frequency of 22 hz.