New York's 300 m high Citicorp Tower oscillates in the wind with a period of 6.80 s. Calculate its frequency of vibration.

F = 1/P = 1/6.8 = 0.147 cycles/s = 0.147 Hz.

The frequency of vibration can be calculated using the formula:

frequency = 1 / period

Given that the period of oscillation is 6.80 seconds, we can substitute this value into the formula:

frequency = 1 / 6.80 s

To calculate the frequency, we divide 1 by 6.80:

frequency ≈ 0.1471 Hz

Therefore, the frequency of vibration for the Citicorp Tower is approximately 0.1471 Hz.

To calculate the frequency of the Citicorp Tower's oscillation, we can use the formula:

Frequency (f) = 1 / Period (T)

Where:
- Frequency is measured in hertz (Hz)
- Period is measured in seconds (s)

Given that the period of oscillation is 6.80 s, we can substitute this value into the formula:

f = 1 / 6.80

Calculating the frequency:

f = 0.147 Hz

Therefore, the frequency of vibration for the Citicorp Tower is approximately 0.147 Hz.