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Discussion in 'Pre-Medical - MD' started by kreno, Aug 18, 2001.
was the answer to that momentum collison an ellipse or parabola shape that is formed?
'cuz everyone i talked to swear it's parabola, but i'm skeptical.... i think it's an ellipse.
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.
I put parabola too...
do you know what it means for a species to be "k-selected"??
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
Test is over, why do you guys dwell on that? you can't change any answers...go party!
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
YAH WHT THE HELL WAS THAT K and R ****!!
Yeah it's usually covered in ecology.
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.
Thank God, I got one right.... 76 more to go (hopefully ) yeah, right.