I think frequency it sounds like the correct answer but I am not completely sure if I am correct
This drag force is always opposite to the object's motion, and unlike friction between solid surfaces, the drag force increases as the object moves faster.
Answer:
Explanation:
We have given the rest mass of SPARTYON = 945 times of mass of electron
We know that mass of electron 
So mass of SPARTYON 
Speed of light 
According to Einstein equation energy is given by

Now according to planks's rule
Energy is given by
, here h is plank's constant 
So 
Answer:
due to the inertia of motion, the fan continues to move for some time even after switching it off.