Which person below is experiencing a delusion?
A. Imani, who reads a lot and thinks she will go to an Ivy League
school
O
B. Nia, who thinks that she is the daughter of the president and an
extraterrestrial
O
C. Maurice, who has panic attacks for no apparent reason
O
D. Demetrius, who sees distortions and colors when he looks at a
face

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?