The answer is A. The Sun and all the planets revolve around Earth.
Aristotle believed that the Earth was the centre of the solar system, and the Sun and the planets orbited around it. He believed that the universe was composed of Earth-like bodies, which were at rest, and of heavenly bodies, which were in perpetual motion.
The answer is A because if you take into account the friction of the object moving through the air it would cause a slowing of the object in question
Answer:
the answer is 1500 because of the internet
Hello!!
For calculate the velocity let's applicate the formula:


d = Distance = 4000 m
v = Velocity = ?
t = Time = 400 s
⇒ 

⇒ 



Answer:
P = 2234400 Watt
Explanation:
Power generation is given as rate of work done
Here the turbine generator is located at 120 m below the free surface
So here rate of work done is given as rate of potential energy


so we have

now we have

so the power generation potential will be 2234400 Watt