Physics – Physics Education
Scientific paper
Sep 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003phyed..38..429f&link_type=abstract
Physics Education, Volume 38, Issue 5, pp. 429-432 (2003).
Physics
Physics Education
1
Scientific paper
It is shown that highly elliptical orbits, such as those of comets, can
be explained well in terms of energy rather than forces. The principle
of conservation of energy allows a comet's velocity to be calculated at
aphelion and periheilon. An example asks students to calculate whether
they can run fast enough to escape from a small asteroid.
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