Answer:
D) the bending of a wave as it moves around an obstacle or passes through a narrow opening
Explanation:
Even though light travels in straight line, it will bend around objects if their size is comparative to its wavelength. This phenomenon is called diffraction.
Light will also bend if the light travels from one medium to another medium at an angle, but that is called refraction.
Diffraction occurs in one medium. Refraction occurs when light travels from one medium to another.
Soil is composed of small pieces of a variety of materials, so it is a heterogeneous mixture. The answer would be C (mixture) :)
Burning coal to create power pollutes the air. Not sure if it's the answer you're looking for as the answers are not given to me.
To solve this problem we must keep in mind the concepts related to angular kinematic equations. For which the angular velocity is defined as
Where
Final angular velocity
Initial angular velocity
Angular acceleration
t= time
In this case we do not have a final angular velocity, then
Re-arrange for
Therefore the mangitude of the angular aceleration is 5449.1rad/s²
I think the correct answer from the choices listed above is option B. Geologists have divided Earth's history into time units, which are largely based on fossil records. In the context of Earth's history, time is generally divided on the basis of biotic composition which are recorded by the fossils being discovered.