Math Flashcards
1
Q
Spherical law of cosines for sides
A
cosa = cosbcosc + sinbsincccosA
2
Q
Spherical law of cosines for angles
A
cosA = -cosBcosC + sinBsinCcosa
3
Q
reduced mass
A
µ = m1m2/(m1 + m2)
4
Q
area of an ellipse
A
πab
5
Q
ellipse radius formula
A
a(1-e^2)/(1+ecosΘ)
6
Q
parabola radius formula
A
2p/(1+cosΘ)
7
Q
hyperbola radius formula
A
a(e^2 - 1)/(1+ecosΘ)
8
Q
theoretical resolution of a telescope
A
=1.22λ/D
9
Q
equilibrium temperature of a planet
A
Tp = Ts * (1-a)^1/4 * (Rs/2D)^1/2