Uranus takes 84 earth years to make a full rotation around the sun<span />
Answer:60 rev/min
Explanation:
Given
angular speed of first shaft 
Moment of inertia of second shaft is seven times times the rotational speed of the first i.e. If I is the moment of inertia of first wheel so moment of inertia of second is 7 I
As there is no external torque therefore angular momentum is conserved




Methods of extraction include: extract by electrolysis, extract by reaction with carbon or carbon monoxide, and extracted by various chemical reactions.
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There are plant cells called chloroplasts, plants leave chloroplasts which have chlorophyll that capture and absorb light energy from the sun.