C. A little backward, 100 or 110 degrees
The wave length becomes shorter and the pitch becomes higher
Option (a) is correct.
Falling objects accelerate as they approach the ground.This is because of the force of gravity acting on the falling objects. so the velocity of these objects increases continuously as they approach the ground. the acceleration acting on the falling objects is a constant ( close to the surface of earth) and is called as acceleration due to gravity denoted by g. value of g=9.8 m/s².
Do it as if you are writing a yes or no statement but have edge more towards the no side.
Pluto is classified as a dwarf planet!
