Answer:
a. 
, 
Explanation:
From the information given;
Using the work-energy theorem
ΔKE = W = 
K =
∴
Since 
and r_1 = 4, and r_2 = 2 (from the missing diagram which is attached below)
Then;
The core of the earth lets out radiation from under the ground which make the core responce of how volcano's errupt.
<span>An isotope is a form of a
chemical element whose atomic nucleus contains a specific number of neutrons in
addition to the number of protons that distinctively defines the element. The
nuclei of most atoms have neutrons as well as protons.</span>
What is horoscope?
A forecast of a person's future, typically including delineation of character and circumstances, based on the relative positions of the stars and planets at the time of that person's birth.
*A short forecast for people born under a particular sign, especially as published in a newspaper or magazine.
*A birth chart.
What is its uses?
It can also be calculated for an event, a question, and even a country. Symbols are used to represent planets, signs, and geometric connections called aspects. In most cases, the horoscope in Western astrology is drawn on a circular wheel.
