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A material that can easily flow is called a...
A. Fluid.
<h2>
Answer: 56.718 min</h2>
Explanation:
According to the Third Kepler’s Law of Planetary motion<em> </em><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>
In other words, this law states a relation between the orbital period 
of a body (moon, planet, satellite) orbiting a greater body in space with the size 
of its orbit.
This Law is originally expressed as follows:
(1)
Where;
is the Gravitational Constant and its value is 
is the mass of Mars
is the semimajor axis of the orbit the spacecraft describes around Mars (assuming it is a <u>circular orbit </u>and a <u>low orbit near the surface </u>as well, the semimajor axis is equal to the radius of the orbit)
If we want to find the period, we have to express equation (1) as written below and substitute all the values:
(2)
(3)
(4)
Finally:
This is the orbital period of a spacecraft in a low orbit near the surface of mars
<h2>
Answer: The Big Bang theory</h2>
Explanation:
The Big Bang theory explains that billions of years ago, before the current universe was born, matter was concentrated in an infinitely small and highly dense point. Then, a large explosion caused this matter to expand in all directions, creating the universe we now know (including space and time).
In addition, this theory explains that our universe still continues its expansion process.
Answer:
metre for length and the kilogram for Mass
