Runner a is initially 4.4 mi west of a flagpole and is running with a constant velocity of 7.5 mi/h due east. runner b is initially 3 mi east of the flagpole and is running with a constant velocity of 5.1 mi/h due west. how far are the runners from the flagpole when they meet? answer in units of mi.

In what direction does the medium move relative to the direction of the wave? explain.

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.

Why does lightning travel from clouds to the ground?