Answer:
The answer is B.
Barnard’s star, Sun, Altair, Achernar
Explanation:
Remember the brighter the star the higher the temperature, Red being the oldest of the stars orange middle age, white stars ( getting to its ends can be also a dwarf star), and blue star being the youngest of the stars Also blue is the hottest star
Answer:
The angular speed of the disc be at this time is 46.65 rad/s.
Explanation:
Given that,
Angular acceleration
Time t =15.0 s
We will calculate the angular speed of the disc
A disc initially at rest.
So,
Using rotational kinematics equation
Where, = initial angular speed
=final angular speed
= angular acceleration
Put the value in the equation
Hence, The angular speed of the disc be at this time is 46.65 rad/s.
Answer: A gem is a stones that is used to make jewelry. A crystal is apure substance that has molecules arranged in "a regular geometric pattern". A gem can also be a crystal, whereas a crystal can not be a gem. Crystals of minerals are classified mainly according to their crystal systems such as cubic, hexagonal, tetragonal, orthorhombic, monoclinic and triclinic, depending on the relationship between the crystal faces and their angles. Each crystal of a particular mineral has its own crytal system.
Explanation:
Answer:
5 m/s²
Explanation:
Acceleration = change in speed/time taken
20-5=15
15/3= 5 m/s²
A fault breaks through sedimentary layers.
Igneous rock forms between sedimentary layers.
Explanation:
The principle of cross-cutting relationships is useful in determining relative ages where a fault breaks through sedimentary layers and when igneous rocks form between sedimentary layers.
- The principle of cross-cutting relationships suggest that a fault and an intrusion are younger than the rocks they cut through.
- A rock displacement and joints when seen in sedimentary rocks are obviously older than the rocks they cut through.
- Igneous intrusions between rock layers are also younger than the beds they cut through.
- In tilted beds, we use the law of original horizontality to resolve it.
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Fault brainly.com/question/8797749
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