Since the universe is infinite, the probability of events and reoccurrence is infinite. So that means that there is a chance, if
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Let us consider body moves a distance S due to the force F.
Hence the work by the body W = FS
If the force is not along the direction of displacement,then the work by a body for travelling a distance S will be -
where
is the component of the force along the direction of displacement.
As per the question the power P is given as -
Hence alternative definition of power P = F.V
Answer:
Explanation:
The planet can be thought as a solid sphere rotating around its axis. The moment of inertia of a solid sphere rotating arount the axis is
where
M is the mass
R is the radius
For the planet in the problem, we have
Solving the equation for R, we find the radius of the planet: