events. In this case, simultaneity does not destroy the concept of causality because it
could be that event A may appear to cause B or the B may appear to cause A depending
on the viewer. This is because time is a dependent value and will depend on the
reference frame between these occurring events.
The theory of relativity sets an upper limit on the speed of a particle. Does that mean that
there are also upper limits on its energy and momentum? Explain.
Provide links to two Internet sites that you have visited to gain additional
information (beyond the textbook) regarding the twin paradox. Briefly describe the twin paradox
in your own words. Include an explanation for why this is not truly a paradox. Do not just copy
words from the textbook or Web sites.