ellipse or parabola?

[kreno]

was the answer to that momentum collison an ellipse or parabola shape that is formed?

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[kreno]

'cuz everyone i talked to swear it's parabola, but i'm skeptical.... i think it's an ellipse.

 

[jordews]

I went with parabola, only because an ellipse comes back around like a circle, and a parabola would keep going straight down. It was my best guess anyways.

 

[nashtrash]

I put parabola too...

do you know what it means for a species to be "k-selected"??

 

[Jameson]

If a species is K-selected than its population is determined by the number of individuals the environment can support, i.e. if a particular environment can only support 50,000 individuals than that is the limit. In theory, the environment cannot support anymore individuals than that number.K-selected species are typically of higher order, like humans, show parental care, live a long life and have fewer offspring.
The opposite of a K-selected species would be an r-selected species which tend to be of a low order, have many offspring at one time, short lives, no parental care. If I recall, r-selected populations are limited, for the most part, by predators.
congrats on finishing the MCAT's

 

[Denilson]

Test is over, why do you guys dwell on that? you can't change any answers...go party!

 

[sweetz1180]

i put down parabola...that k- r-species question was annoying, i actually almost said what the f*** out loud...i never learned that in bio

 

[dknykid1980]

YAH WHT THE HELL WAS THAT K and R ****!!

 

[brhill]

Originally posted by sweetz1180:
•i put down parabola...that k- r-species question was annoying, i actually almost said what the f*** out loud...i never learned that in bio•

Yeah it's usually covered in ecology.

 

[NE_Cornhusker1]

Parabola.
The equation is y=Vit - 1/2 at^2.
y is the distance down.
Vi is initial velocity heading down(zero)
t is time
a is acceleration
The minus sign is in there because your going down. The grid (y and t) is set up as follows; y was going up and down (the vertical face of the cliff) and t is the time.

It's just a basic high school algebra question. Peace Out. AEKDB.

 

[scubadiva]

Thank God, I got one right.... 76 more to go (hopefully ) yeah, right.