The river that flows through Rome is the Tiber.
Answer:
C. 1.5 W/m²
Explanation:
= Unpolarized light = 4 W/m²
= Angle with which the polarizer is turned
The polarization of light is given by

The intensity of light after passing through the first polarizer is 1.5 W/m²
If an element has a atomic number of 8 and a mass number of 18, then the number of protons us also 8
Answer:
A theory changes based on new observations and testing.
Explanation:
The first statement here refers to a law. A law states how something behaves without providing an explanation to such observations.
Scientific theories are explanation into a phenomenon. They give reasons to why certain patterns are noticeable.
They are based on multiple tests and validation of a hypothesis. By so doing, they can be changed based on new observations and testing.