I tried conservation of energy, but got stuck. I tried U1=K1+K2+U2 Where U1 is the potential energy of the system at the beginning (Gm1m2/r1) K1 is the kinetic energy of the smaller mass (1/2 m1v1^2) K2 is the kinetic energy of the larger mass (1/2 m2v2^2) and U2 is the potential energy at the...
Every distance is in meters. I assume I will need to use Kepler's second law (stating that a line joining the planet and the sun sweeps out equal areas during a time interval). Is this right? If it is how do I use it. I don't have the orbital velocity.
Comets travel around the sun in elliptical orbits with large eccentricities. If a comet has speed 2.5×104 when at a distance of 2.3×1011 from the center of the sun, what is its speed when at a distance of 5.9×1010 .
Using Kepler's Law T2 is proportional to R3
T2/R3 is a constant (C)...