Answer:
Laws are created based on repeated experimentation.
Laws are based on observations.
Laws explain observations.
Explanation:
The complete question is..
Which statements correctly describe laws? Check all that apply.
-Laws are created based on repeated experimentation.
-Laws are based on observations.
-Laws explain observations.
-Laws are factual statements.
-Laws can be changed or replaced
Laws are based on the results of repeated experimentation, and observation, and they describe or predict some phenomenon in nature. Laws can't be said to be factual, as they might be seen to be constrained, or restricted and might need to be extended by future observations. Established laws explain observations, and laws cannot be changed or replaced, but can be extended, to predict future observations.
To solve this problem we must use the concepts related to the Law of Malus and the intensity of light. The intensity of a linearly polarized beam of light, which passes through a perfect analyzer and vertical optical axis is equivalent to:
Where,
indicates the intensity of the light before passing through the polarizer
is the resulting intensity
indicates the angle between the axis of the analyzer and the polarization axis of the incident light.
Since the light has the same intensity after the first polarizer we approach the second intensity directly so
Our values are given as :
Therefore replacing and re-arrange to find the angle we have
Therefore the angle of the second polarizer with respect to the first one is 57.1°
The true statement is that the speed of the meteor is 7.8 Km/s.
<h3>What id the velocity?</h3>
The term velocity refers to the ratio of the change in the displacement to time. This definition applies strictly to rectilinear motion. In a case of a circular motion like the Ferris wheel in which the direction of the speed continues to change, we say that the velocity is changing because the direction is changing.
Now, the speed of the meteor was given to be 468 km/min. In order to obtain the speed in kilometer per second we have to divide the given value by 60. Thus the true statement is that the speed of the meteor is 7.8 Km/s.
Learn more about velocity:brainly.com/question/18084516
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The difference between a solid and a gas is that the particles are more conjoined together in a solid, when in a gas the particles are more spread out.
Answer:
counterclockwise
Explanation:
given data
area = 25 cm²
solution
We know that a changing magnetic field induces the current and induced emf is express as
..................................1
and we will get here direction of the induced current in the loop that is express by the Lens law that state that the direction of induces current is such that the magnetic flux due to the induced current opposes the change in magnetic flux due to the change in magnetic field
so when magnetic field decrease and point coming out of the paper.
so induced current in the loop will be counterclockwise