People are asleep at 3 am so energy would be less then.
Answer:
A tsunami is a sequence of particularly long water waves that can spread over very great distances and, as such, cause water to move.
When penetrating into areas of shallow water, the sea is compressed and thus piles up on the coasts to form several high tidal waves. These carry the water with great force far over the shoreline and usually cause great damage. During the subsequent retreat, the material carried away on the flooded land, often also people and animals, is mostly washed far out into the ocean.
Tsunamis occur as a result of sudden water displacement, such as when parts of the ocean floor are raised or lowered during an undersea earthquake or when large masses of earth and rock slide into the water as well as due to violent winds.
We use the formula, to calculate the average speed of the round trip,

Here,
, is total distance covered by plane in total time,
.
For the round trip,

.
Thus,
.
Answer: 
Explanation:
This problem can be solved using the Third Kepler’s Law of Planetary motion:
<em>“The square of the orbital period of a planet is proportional to the cube of the semi-major axis (size) of its orbit”. </em>
<em />
This law states a relation between the orbital period
of a body (the exoplanet in this case) orbiting a greater body in space (the star in this case) with the size
of its orbit:
(1)
Where:
is the period of the orbit of the exoplanet (considering
)
is the Gravitational Constant and its value is
is the mass of the star
is orbital radius of the orbit the exoplanet describes around its star.
Now, if we want to find the radius, we have to rewrite (1) as:
(2)
(3)
Finally:
This is the radius of the exoplanet's orbit
Answer:
The answer is 5 meters per second.