A physical property can be seen or a change in color.
The answer is B because you can see when wood is rotting.
Answer: 185.5672566
Explanation: The friction is not relevant
Normal reaction is the force perpendicular to the surface.
this force resists the downwards forces applied which are gravity and a component of the applied force.
Answer:
Diffraction: Wave Theory
Interference: Wave Theory
Reflection: both particles and wave theories
Refraction: both particles and wave theories
The related concepts to solve this problem is the Glide Ratio. This can be defined as the product between the height of fall and the lift-to-drag ratio. Mathematically, this expression can be written as,

Replacing,


Converting this units to miles.


Therefore the glide in terms of distance measured along the ground is 7.2916miles
The particles are making no motion at all.