Answer:
Beyond our solar system, organic molecules have been found in giant clouds of dust and gas between stars and in star-forming regions.
In our solar system, besides Earth, organic molecules have been discovered on comets, in meteorites, on Saturn's moon Titan, in the plumes of water expelled from Saturn's moon Enceladus, and on Neptune's moon Triton.
Answer: 
Explanation:
Given
(a)
Heat transfer 
Work done 
Change in the internal kinetic energy is

(b)
Heat transfer 
Work done 
Change in the internal kinetic energy is

I'm very skeptical about the accuracy and reliability of his results.
I need to know more about the situation.
First of all, I need to know HOW the track was circled.
Was it by foot ? By car ? By horse ? By a dog ?
-- The current men's world record in the Mile Run
is 3 minutes 43 seconds.
-- My friend reported research showing that it really
only requires about 22% of that much time.
-- His data and his methods need some peer review.
Power is the energy in a system per time. It will have units of Watts which is equal to joules per second. It can be expressed as:
P = E / t
where E = Force x distance
P = Fd / t
t = Fd / P
t = 8 (9.72) / 3.0
t = 25.92 s