The wave frequency is 2 Hz.
What is wave frequency ?
The number of waves that pass through a fixed point in a given amount of time is referred to as the wave frequency. The hertz is the SI unit for wave frequency (Hz).

where,

Given,


The waves frequency is 2 Hz.
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Kg . Meter per second (Kg.m/s)
The surface of the earth changes. Some changes are due to slow processes, such as erosion and weathering, and some changes are due to rapid processes, such as landslides, volcanic eruptions, and earthquakes.
Saturnnnnnnnnnnnnnn..........
Answer:
The charge inside the cube is null.
Explanation:
If we apply the gauss theorem with a cubical gaussian surface of the size of the cube:

If we consider than the direction of the electric field is
, we can solve the problem differentiating the integral for each face of the cube:


E₀ is a constant and each surface is equal to each other, so: 
Therefore:

