Syou climb a high mountain, the buoyant force exerted on you by the atmosphere decreases remains the same increases

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.)

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Acar traveling at 22 m/s starts to decelerate steadily. it comes to a complete stop in 15 seconds. what is it’s acceleration?