Answer:
Because of the time, the breeze is blowing cold towards the ocean. It has to do with wind drafts.
Answer:
That would be a perpetual motion machine
Explanation:
1. Frequency: 
The frequency of a light wave is given by:

where
is the speed of light
is the wavelength of the wave
In this problem, we have light with wavelength

Substituting into the equation, we find the frequency:

2. Period: 
The period of a wave is equal to the reciprocal of the frequency:

The frequency of this light wave is
(found in the previous exercise), so the period is:

They'll vibrate at their characteristic resonant frequency. That depends on the material the object is made of and its shape.