I am in second grade and am stuck with this HW problem: ?

Question

The rovers which landed on our planet recently arrived from the blue planet populated by semi-intelligent monkeys.

(a)
Factrorize the key used by the monkeys for RF transmissions:
2635584251 5904431300 0846739054
0789899949 9590600959 1863538978
0393231065 3506388103 9671393275
4977165052 1774839881 8589045025
8537288672 7012946683 3179989061
5451420223 0157347553 7565932947
0561698418 9979055120 0701325708
5592408135 0377432474 4677381003



(b)
Orbital period of the blue planet is 0.5317 years.
Assuming that all orbits are co-planar and circular, and the monkeys used as little fuel as possible (they experience severe shortage of fuels) how long did it take for the spacecraft to get here? Express your answer in years.

.
Never mind about part (a), I already did it myself
4994909180 6585030192 1197603564
0811127806 2369027342 0984342968
6905940646 1210859121 7229304461
0060051708 6529446652 7166368851
x
5276540886 4610854036 2982390044
0198638525 5338175683 9064739589
5077673310 8978325419 9732302674
7184971251 2458682256 2788766953

Answer 1

0.5317 = 365.256 / 686.98 ?
http://quest.nasa.gov/aero/planetary/orbit/

They have already done the calculations, and they are going to use a Hohmann orbit, which takes about 258.3 of their days:
http://www.newmars.com/wiki/index.php/Hohmann_trajectory

So, after 0.376 of your years from the start, the semi-intelligent monkeys will land on your Red Planet.

Answer 2

4 years

Answer 3

I posited this question to my kindergarteners (got 2), and they said "I like monkeys and keys but what is RF?" "Second graders are so smart!"

Then they said, Daddy, "Those monkeys need to do half an ellipse to change orbits. They acclerate once to get into the ellipse, and once when they arrive here. Minimal Energy. Can we play with them?"

Answer 4

what the heck? you're doing this in 2nd grade? 10 years ago when I was in 2nd grade, all we did was color turkeys and read harold and the purple crayon and other books. golly day go read something like NANCY DREW!!!!


i'm thinking the answer is 4

and i don't think you're really in 2nd grade

Answer 5

Interesting that a second grader is answering questions on thermodynamics. Why lie about something as stupid as that?