Answer:
1)
The period of a simple pendulum is given by the formula:
where
L is the length of the pendulum
g is the acceleration due to gravity
In this problem we have:
L = 3.50 m is the length of the pendulum
At the North Pole, we have
So the period is
At Chicago, we have
So the period is
At Jakarta, we have
So the period is
2)
The frequency of an object in simple harmonic motion is equal to the reciprocal of the period:
At the North Pole, we have
T = 3.749 s
So the frequency is
At Chicago, we have
T = 3.754 s
So the frequency is
At Jakarta, we have
T = 3.758 s
So the frequency is