I see the light moving exactly at speed equal to c.
In fact, the second postulate of special relativity states that:
"The speed of light in free space has the same value c<span> in all inertial frames of reference."
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The problem says that I am moving at speed 2/3 c, so my motion is a uniform motion (constant speed). This means I am in an inertial frame of reference, so the speed of light in this frame must be equal to c.
Answer:
7160.2812 s or 1.988 hours
Explanation:
m = Mass of person
R = Radius of Earth = 
g = Acceleration due to gravity = 9.81 m/s²
= Angular speed
Force at equator would be
Force at pole
From the question
Time period is given by
The rotational period of the planet is 7160.2812 s or 1.988 hours
No. Sorry. A sound wave is a mechanical wave. There's nothing electromagnetic about it.
Answer: A. AB + C → AC + B
Explanation:
A single displacement reaction is also known as single replacement reaction. A reaction in which an element replaces another element from the compound is known as single displacement reaction.
AB + C → AC + B
Here, element C replaces another element B from compound AB.
Thus, option A represents is a general equation for a single displacement reaction
Option B represents a double displacement reaction where one element of a compound replaces another element of another compound and vice-versa, option C is a synthesis reaction where two reactants or more combine to form one product. Option D is a decomposition reaction in which multiple products are formed from a single reactant.
