Answer:
Explanation:
Coordinate system is one that describe the location of an object in a given plane. It implies the use of axes (coordinates) and points.
Given that the man in the question walks 400 m due north of east. The cardinal points can be used in this case, with the north and east cardinals as the required axis.
scale = 
= 
= 
scale = 1:40
This is a reduced scale which implies that 1 cm on the drawing is equal to 40 m on the original length.
The man's direction is
north of east.
The graphical drawing of the vector is herewith attached to this answer.
Answer:
The magnitude of the vector clearly doubles if each of its components is doubled.
Explanation:
The principle of the Conservation of mass is so important, as it defines that in physics, nothing can be created or destroyed in an isolated system. It explains <span>that the number of molecules (parts) must be equal on both sides of the equation - BALANCED EQUATION</span>