NeoPets Riddles (Lenny Conundrums) and Answers Here

uh people have to figure it out first. ^_^ I am trying but I don't see how I can find out how many pionts where awarded.... considering that there are tons of people that did the Lost Desert Plot!

basically, all you can do is guess. check the news. and make sure you round right. maybe ask around to see what people got... (get an average maybe?) anyway i already guessed. i dont like these ones

I got 19,860,000,000, I think, though I don't remember if those were the numbers I had in the billions place. I just translated the hieroglyphs on the table and then took those letters, found their corresponding place in the alphabet, added together the letters that had two-digit numbers, and voila. I'm completely sure I'm wrong, but it was fun to do, lol.

umm...
Yeah, I'm completely lost. I figure I'll add the scores they posted in the news a couple days ago and then average scores for everyone else. I don't think THAT many people took part in the plot. I, myself, only got 1000np for clicking something by accident. It was beyond me!

I don't know if I got it right, but I have a good feeling about my answer.

Just one hint:

Don't forget about the furniture. Just because the sand and block scores don't contribute to the actual point award, doesn't mean the conveniently misplaced furniture scores don't.

hi
so the answer is

so what is
this answer

I guess no one really knows. It can only be guessed at.

Answer: 2526000000

Assume the world of Neopia is a spherical planet with a diameter of 1600 km with a uniform density of 5200 kilograms per cubic metre.


If the Virtupets Space Station is in a circular orbit 630 km above the surface of Neopia, what is its orbital velocity in metres per second? Please round up to the nearest whole number.

wow...that's confusing. I did my math ALL wrong...I somehow got like .034415302, and I know that is WAY wrong :S

Good luck, I'm terrible at math to begin with, now there's the metric system on top of it! LOL
draggie

Orbital Velocity = Square Root (GM/r)

where
G = Gravitational Constant
M = Mass
r = Radius

Make sure the units you use are correct.

If the diameter is d = 1600km, then the radius is r = 800 km, or 800,000 meters. The formula for the volume V of a sphere with radius r is:

. . . . .V = (4/3)(pi)(r^3)

Then the volume of the planet is:

. . . . .V = (4/3)(pi)(800^3 km^3)
. . . . .. .= (4/3)(pi)(800000^3 m^3)
. . . . .. .= (pi/3)(2.048?-10^18) m^3

With a density of 5200 kg/m^3, we get a total mass M of:

. . . . .M = (volume) ?- (mass/volume)
. . . .. . .= (pi/3)(2.048?-10^18 m^3) ?- (5200 kg/m^3)
. . . .. . .= (pi/3)(1.06496?-10^22) kg

...or about 1.1152235?-10^22 kilograms.

Since the satellite is 630 km = 630,000 meters above the surface, it is then 630 km + 800 km = 1430 km = 1,430,000 meters from the center of the planet. So R = 1,430,000 m. Taking the gravitational constant (which we will assume is the same in the Neopets' universe as in our own) as:

. . . . .G = (2/3)?-10^(-10)(m^3 / (kg s^2))

...and using the standard formula for orbital velocity v:

. . . . .v = sqrt[(GM)/R]

...we get:

. . . . .v = sqrt[(2/3)(10^(-10))(pi/3)(1.06596)(10^22) / 1,430,000] m/s
. . . .. . .= sqrt[520405.9215...] m/s (approx)
. . .. . . .= 721.3916561... m/s (approx)

Rounding UP, we get 722 meters per second.

Please check my work.

Eliz.

Answers.com: orbital velocity
Astronomy 106: Orbital Velocity

Well, the first time I did it, I used 1600 instead of 800 because I forgot that it was the diameter, but when I did it right, I got the same answer. This is of course, assuming as you said, that the gravitational constant is the same...

((crap, nevermind that's wrong))

722 is what I got

Yep, i had the same calculations based on this site :
http://library.thinkquest.org/03oct/02144/text/basics/orbittal.htm

i got 721.053 m/s or -721.053 m/s

Well i figure the station isn't orbitting backwards so i pick 722

Should we write meters per second?

same answer here but i was able to use a calculator for the final answer

http://www.rclsoftware.org.uk/gravel/orbits.html

ya i got that 2 ( p.s. im one of the 26 who guessed the last one hehe!)