Answer:
conservation law os also called law of conservation it states that a certain physical property does not change in the course of time within a isolated physical system
The answer is 2.93m (to 2 dp)
Answer:
Resistance to electrical currents
Explanation:
Conductors have low resistance to electrical currents, and are used to "conduct" the flow of electricity.
Insulators have very high resistance and are used to protect us from the flow of electricity.
Answer:
The speed of light in air is 2.996x10⁸ m/s, and polystyrene is 1.873x10⁸ m/s.
Explanation:
To find the speed of light in air and in polystyrene we need to use the following equation:
Where:
: is the speed of light in the medium
n: is the refractive index of the medium
In air:
In polystyrene:
Therefore, the speed of light in air is 2.996x10⁸ m/s, and polystyrene is 1.873x10⁸ m/s.
I hope it helps you!