A grandfather clock is controlled by a swinging brass pendulum that is 1.2 m lon
ID: 2203882 • Letter: A
Question
A grandfather clock is controlled by a swinging brass pendulum that is 1.2 m long at a temperature of 30 degree C. What is the length of the pendulum rod when the temperature drops to 0.0 degree C? (Round your answer to four significant figures.) 000684 Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully, mm If a pendulum's period is given by where L is its length, does the change in length of the rod cause the clock to run fast or slow? fast slow neitherExplanation / Answer
a) dl = 1.2*18*10^-6*30 = 0.000648 m so, length of the pendulum = 1.2 - 0.000648 = 1.200 m