Answer:
the pilot should head the plane 
towarrds south- west
Solution:
The airspeed of the airplane, v = 280 km/h
The velocity of the wind, v' = 52 km/h South-west
Angle, 
Now, measured angle in the clockwise direction from North:
Now,
south- west
Answer:
5 km
Explanation:
displacement is the straight line distance from a particular point. since north and south are in opposite directions, it means that he has taken a u-turn
thus, 10 - 5 = 5km displacement
Answer:
Reflection of sound waves also leads to echoes. Echoes are different than reverberations. Echoes occur when a reflected sound wave reaches the ear more than 0.1 seconds after the original sound wave was heard. ... Reflection of sound waves off of curved surfaces leads to a more interesting phenomenon.
