Please help me with this riddle

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0DeMar is a strange little planet. Its gravitational acceleration at its surface is exactly 10.0 metres per second per second, and its diameter is exactly 2100 kilometres. 02br02br00Also, a completely unrelated fact, Skeiths are able to consume about 0.4 kg of pretty much anything they want to eat, every minute, nonstop. 02br02br00Assuming that the density of the planet is uniform, and that orbiting bodies don't significantly affect the planet's gravity, 01b00how many years will it take one million Skeiths to consume one cubic kilometre of DeMar?02b00 Please round up to the nearest year.02br02br00Please help me0-

Pucca · Accepted Answer

0 Isn't that..Phisics?:P 0-

Kooyeen · Answer

0 Hi,02br
00this is not a riddle, it's a physics question. 02br
00If the density of the planet is uniform and nothing else affects the planet's gravity, then you just need to know how much a cubic kilometer weighs (hmm, or rather, what's its mass).02br
00You have to find the mass of the planet (considering that formula F = G (m1 * m2)/r^2 ---> 01a05000 02a00, you should find that Acceleration = G * MassPlanet / r^2), then after finding the volume you can find the mass of a cubic kilometer. Then after some other calculations you should get your result. 0510240hrefhttp://en.wikipedia.org/wiki/Law_of_universal_gravitation11id1

ChantyPrincess · Answer

0I was never good with math 05002br
02br
00Thanks anyway010id6

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