How do I go about doing this physics question?

[CADA]

Calculate the period of vibration for each of the following frequencies: 1. 0.15Hz 2. 6Mhz 3. 2.0 x 10-4Hz

[SAN0623]

Start by caring enough to try.A Hz is one cycle per second. MHz is a million. A period is the time to complete one cycle, so its the reciprocal of frequency. Crank it out.