8.8 A comet orbits the sun in a highly elliptical orbit. Does the comet have a constant (a) linear speed, (b) angular speed, (c) angular momentum, (d) kinetic energy, (e) potential energy, (f) total energy throughout its orbit? Neglect any mass loss of the comet when it comes very close to the Sun.
(a) No
(b) No
(c) Yes
(d) No
(e) No
(f) Yes
Among all only angular momentum and total energy of the comet will be constant other all factors given will vary from point to point.
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