Question

014 (part 1 of 2) 10.0 points Ever since it was learned that an aster- oid hit the earth 65 million years ago and destroyed most life-forms, including the di- nosaurs, observations of new comets are fol- lowed with great interest! Suppose a new comet is found orbiting the sun as it is pass- ing its point of closest approach at a distance Tmin 0.658 AU (1 AU-semimajor axis (average radius) of the Earth's orbit.) Careful studies determine that its furthest distance from the sun will be ma 20.8 AU The mean radius of the earth's orbit about the sun is 1.496 x 1011 m. The mass of the earth is 5.98 x 1024 kg. The mass of the sun is 1.991x 10*0 kg. The general gravitational constant is G 6.67259 × 10-11 N m2/kg2. Because it is now in the vicinity of the earth's orbit, it could pose a threat on the next evolution. What is the period of the new comet orbit ing the sun? Answer in units of vr 015 (part 2 of 2) 10.0 points Unlike the earth, which moves in a nearly circular orbit, the orbital speed of this comet varies. What is the ratio of greatest to the smallest orbital speed?

Answer 1

Xmin = o. 650 AU 06 58 + 0.8 2 2. 2. :11 x (10 729), yy. T_ = 35.14300287 L=mvr 1. mex 0. 658 min 31. 6103 Vmin