13. Which compound is most reactive? ethene ethyne ethane
2 answers:
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Complete Question
In lightning storms, the potential difference between the Earth and the bottom of the thunderclouds can be as high as 350 MV (35,000,000 V). The bottoms of the thunderclouds are typically 1500 m above the earth, and can have an area of 120 km^2. Modeling the earth/cloud system as a huge capacitor, calculate
a. the capacitance of the earth-cloud system
b. the charge stored in the "capacitor"
c. the energy stored in the capacitor
Answer:
a
b
c
Explanation:
From the question we are told that
The potential difference is
The distance of the bottom of the thunderstorm from the earth is d = 1500 m
The area is
Generally the capacitance of the earth cloud system is mathematically represented as
Here is the permitivity of free space with as value
So
=>
Generally the charge stored in the capacitor (earth-cloud system) is mathematically represented as
=>
=>
Generally the energy stored in the capacitor is mathematically represented as
=>
=>
Answer:
Explanation:
Given
Motor reverse its direction when \omega =0
(b)