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Home > Courses > 1P21_ref
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Introductory Physics I
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Please read these news, and the course outline, closely - do not just skim
through. There is a lot of information here, and most of your administrative
questions are probably already answered.
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The course uses a free online textbook from OpenStax (see the link on the left).
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Be sure to monitor the homework link on the left.
There will be some
readings and online homework every week, and dedicating some time to this course
every day is the best way to prepare for the weekly test. The volume of
the material in this class is significant, so do a little bit every day, and
start getting into this habit this week.
 Older news
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Welcome! Important announcements will show up here.
- Linear momentum
- Ex: tennis ball (an elastic collision)
- external and internal forces in a collision
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\( p_{\rm system} = \mbox{const} \), is a separate conservation law
- Ex: two skaters (c.o.m. does not move)
- Ex: an exploding shell (c.o.m. keeps on going)
- elastic collisions in 1D (C.o.K.E. + C.o.M.)
- Ex: billiard balls, ball against the wall, a golf club
- inelastic collisions in 1D (only C.o.M.)
- Ex: a ballistic pendulum
- Angular momentum
- angular momentum, \( L = I \omega \)
- conservation of angular momentum
- Ex: a figure skater's spin
- vector nature of \( \vec{L} \) and \( \vec{\tau} \)
- precession and gyroscopes
- Experimental foundation of relativity
- Simultaneity and time dilation
- Length contraction
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