Answer: I don't do adopt me but I do have a Ro.blox username its Nvm i cant but my user name
Explanation:
It depends on the person.if you like the song then it loses your focus because you might start singing and that's how it affects your concentration.
Frequency and wavelength are two variables which are
indirectly proportional.
They are related in the following equation:
f = c / w
Where,
<span>f = frequency c =
speed of light w = wavelength</span>
Since c is constant, we can equate condition 1 and
condition 2:
f1 w1 = f2 w2
When w2 = 3 w1, then f2 becomes:
261.63 w1 = f2 (3 w1)
Cancelling w1:
f2 = 261.63 / 3
<span>f2 = 87.21 Hz</span>
To solve this problem it is necessary to apply the concepts related to the Conservation of Energy. Basically the work done on the body is equal to the existing change in kinetic energy. Mathematically this can be expressed as


Where,
F = Force
d = Distance
m = Mass
v = Velocity
Our values are given as
d = 12m
m = 110kg
v = 20m/s
Replacing to find the force we have that,



Choosing the closest value, the correct answer would be E.