Recent content by goochmawn314

I got my formula for the ellipse from the Internet. I know it's not exact, but an approximation rather. I'm only in Calculus I (going into Calc II) so I haven't really studied conic sections (calc-related) yet. Thanks for the info and links though.

It takes quite a while to explain how I arrived at this equation, but I guess I'll explain anyway even though I'm wrong. The perimeter of an ellipse is given by the equation 2pi times the square root of a^2 + b^2 over 2. Rearranging this and making some substitutions, I can say the perimeter...

Here is the fixed image.

Crap. That sin at the very end of the square root should be to the 4th power. Sorry

Idk if anyone has figured this out, but I believe I've found a new equation for the length of an arc traveled by, say, a football. I uploaded a picture of it. I don't have any experimental proof for it, but I used tricky mathematical manipulations with standard projectile equations, the...

Those sound interesting to me. Apparently the opportunities are vast: The school I am going to had one girl who got to intern in Switzerland for her physics degree, and that sounded like an amazing experience to me, considering I've never really been out of the state. Pretty sure she's at NASA...

PS: I do not want a career in academia

They say one way to torture a person is to give them choices. I feel this is partly true in this case. I have a goal in mind for either one: if I do physics, I'll pursue nuclear physics/engineering but I go the chemistry route: I'll do biochemistry/forensic science. I've done a lot of research...

Yeah the derivative is just gt isn't it.. Ok but in this course, there hasn't been any calculus yet. Thanks for your help

also: the angle is always with respect to the horizontal in these problems unless it's aviation (with bearings)

Okay another equation in the book is y = (vi)(sinx)(t) - 1/2(g)(t)^2 (unit here is meters) If you divide out t on both sides you get meters over seconds and are left with (vi)(sinx) - 1/2gt And meters/second is the unit for the original formula I posted. THe 1/2 is still there..

There is a formula in my textbook and I have a strong feeling it's incorrect. The formula the book says is velocity in y direction (final) = (vi)(sinx) - gt Whenever I use this, I get all the answers wrong. However, if I use (vi)(sinx) - 1/2(gt) .. I get them right. Is this a...