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May 29, 2015

Homework Help: physics

Posted by Ashley on Thursday, February 16, 2012 at 8:34pm.

A visitor to a lighthouse wishes to determine
the height of the tower. The visitor ties a
spool of thread to a small rock to make a
simple pendulum, then hangs the pendulum
down a spiral staircase in the center of the
tower. The period of oscillation is 9.71 s.
What is the height of the tower? The accel-
eration due to gravity is 9.81 m/s2 .
Answer in units of m

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