To approach the runway, a small plane must begin at 9° descent starting from a height of 1,125 ft above the ground. how many feet from the runway is the airplane at the start of this approach? round the distance to the nearest foot. 7192 ft 1139 ft 7103 ft 7191 ft

Atrain is traveling at 30.0 m/s relative to the ground in still air. the frequency of the note emitted by the train whistle is 262 hz. the speed of sound in air should be taken as 344 m/s. what frequency (f approach) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and approaching it? what frequency (f recede) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and receding from it?