Answer:
(D) It is equal to the original velocity of the skater.
Explanation:
The velocity of the center of mass of a system is
The velocity of the center of mass is constant if there is no external force, because the total momentum of the whole system is conserved.
So, before the snowball is thrown, the velocity of the center of mass is equal to that of the skater. This velocity will always be equal to the velocity of the center of mass of the system.
Venus has the slowest rotation rate.
It takes Venus 243.7 Earth days to rotate once.
Planet Period
Venus 243.7 (Earth) days
Mercury 58.8 days
Pluto 6.4 days
Mars 24.6 hours
Earth 23.9 hours
Uranus 17.2 hours
Neptune 16.1 hours
Saturn 10.7 hours
Jupiter 9.9 hours
Interesting . . . the largest planet rotates the fastest.
I wonder why that is.
Your answer will be C because that's the only thing that will actually use fossil fuels. everything else in natural and doesn't need fossil fuels.
<span>Dmitri Mendeleev is the person who </span>first arranged the elements according to atomic mass and noticed a periodic recurrence of their physical and chemical properties. The answer is letter D.
