Answer:

Explanation:
As we know that the speed of the wave in string is given as

now we will have
frequency of the wave is given as


now if the ant will feel weightlessness then we will have

so we will have



We use the following formula to determine our acceleration:

We normally use letters in this formula, which gives us:

Filling in this formula gives us:
Δv (change of velocity) = 12 - 4 = 8 m/s
t = 1s

So our answer: the acceleration is
<span> most importantly, the sun is reflected back at the same angle as the angle of incidence, so with vertical panes of glass and the sun overhead, the reflection will just hit the ground before traveling any distance. </span>
Answer:
yᵢ = h
vᵢᵧ = 0
Explanation:
Let initial velocity = u
final velocity = v
height = h
acceleration due to gravity = g
Therefore fro equation of motion,

Here initial velocity is zero.
Hence, 

but since it points downward and you positive is taken in the up direction
