Almost all rocks made of minerals, but different rocks contain different mixtures of minerals. Granite<span>, for example, consists of quartz, </span>feldspar<span>, and mica.
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Answer:
The total energy is 
Explanation:
From the question we are told that
The Poynting vector (energy flux ) is 
The length of the rectangle is 
The width of the rectangle is
The time taken is 
The total electromagnetic energy falls on the area is mathematically represented as

Where A is the area of the rectangle which is mathematically represented as

substituting values


substituting values


Answer:
2592 km/h
Explanation:
Given that a bullet is shot from a rifle with a velocity of 720 m/s. What is the velocity of the bullet in km/h.
The velocity = 720 m/s
Solution
To convert metres per second to kilometer per hour, you will multiply by 3600 and divide by 1000
720 × 3600/1000
720 × 3.6
72 × 36
2592 km/h
Therefore, the velocity of the bullet in kilometer per hour is 2592 km/h
Answer:
In a polar covalent bond, the electrons are unequally shared by the atoms and spend more time close to one atom than the other.
Explanation: