Which of the cases described below requires quadratic law of resistance and which requires linear law of resistance?
A bullet fired from a gun travels through the air at a speed of 
. Its diameter is 
, the air density is 
, and the air viscosity is 
.
A sphere of diameter of 
moves through honey at a speed of 
. The density of honey is 
and its viscosity is 
.
A soccer ball flies through the air at a speed of 
. Its radius is 
.
A cube with a side length of 
sinks sideways to the bottom of a lake at a speed of 
. The viscosity of water is 
.
