Recent content by xxxyyyy

Since only the Earth's radius has changed and not the mass, only the density has become higher. I feel that there should not be any impact on the rotation around the sun. but as shown above, Earth will probably spin faster on its axis and hence it will be completing one rotation in less than...

This is what I think... probably someone can correct. The rotational kinetic energy = I*w^2/2 where I = moment of inertia and w = angular velocity. I = M*R*R where M = mass (no change) and R = radius of earth. Thus, Energy = M*R*R*w*w/2... If R1 and R2 are the new radii and w1 and w2 are...

Regarding Earth's radius... I am new to this forum and looking for the answer to the following question... What will be the effect of reduction in Earth's radius by a factor of 2 on the following: a) Earth's rotation speed about its own axis b) Earth's rotation speed about the SUN c)...