SCAN0023

# SCAN0023 - 4 A simple pendulum is made up of a 2.0 kg mass...

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Unformatted text preview: 4. A simple pendulum is made up of a 2.0 kg mass suspended on a thin aluminum wire. This pendulumhas a period of exactly 4.0 s when operated near the equator at a temperature of 122°F. The pendulum is then moved to an Antarctic weather station where the temperature is — 49°F. The linear coefﬁcient of thermal expansion for aluminum is 24 x 10'6/°C. a. (10, points) What is the length of the pendulum wire at the equator? b. (10 points) What is the period of the pendulum at the Antarctic weather station? 7‘2 22; 5.1L T= \$03 3 T1 i _ —_- 9350+") . LttTL <2; 9 R éﬁ" Hw- :— I: = I22::> Tm: %-(|21~3?—> = 50 C T? 2 “Lg?“ Tc. L” %*(~qu‘3?‘)= #LI‘EOQ AT: —— (15°C ...
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