Velocity
,
m/s2
<span> Speed has direction and velocity.</span>
Answer:
a
Explanation:
the kinetic energy decreases which makes the molecules bond together, that makes them not be able to move much
Electrical > light,sound and thermal
Answer:
31.831 Hz.
Explanation:
<u>Given:</u>
The vertical displacement of a wave is given in generalized form as

<em>where</em>,
- A = amplitude of the displacement of the wave.
- k = wave number of the wave =

= wavelength of the wave.- x = horizontal displacement of the wave.
= angular frequency of the wave =
.- f = frequency of the wave.
- t = time at which the displacement is calculated.
On comparing the generalized equation with the given equation of the displacement of the wave, we get,

therefore,

It is the required frequency of the wave.