Recent content by myleo727

How can one show that if det A = 1 and the 00th component of A > = 1 then A preserves the sign of the time component of time-like vectors? thanks!

hmm. I think I just solved it. Thank you!:smile:

Yeah...I'm now considering the long distance missile, and ignore air-resistance...

sorry. a part of the ellipse. It'll fall back to the earth.

The problem is, it does go into an orbit. I think it's an ellipse...

We know if the Earth is considered flat the maximum range is obtained when the missile is launched at an angle of 45 degrees. But what if we take into account the curvature of the earth? what is the maximum arc-length of the range? :confused: Thank you!

We know if the Earth is considered flat the maximum range is obtained when the missile is launched at an angle of 45 degrees. But what if we take into account the curvature of the earth? what is the maximum arc-length of the range?:confused: Thank you!