You can calculate potential energy by:
U = m.g.h
Where, U = potential energy
m = mass
g = acceleration due to gravity
h = height
Hope this helps!
Answer:
0.78 m
Explanation:
The relationship between wavelength and frequency of a wave is given by
![v=f \lambda](https://tex.z-dn.net/?f=v%3Df%20%5Clambda)
where
v is the speed of the wave
f is the frequency
is the wavelength
For the sound wave in this problem, we have
is the frequency
v = 344 m/s is the speed of sound in air
Substituting into the equation and re-arranging it, we find the wavelength:
![\lambda=\frac{v}{f}=\frac{344 m/s}{440 Hz}=0.78 m](https://tex.z-dn.net/?f=%5Clambda%3D%5Cfrac%7Bv%7D%7Bf%7D%3D%5Cfrac%7B344%20m%2Fs%7D%7B440%20Hz%7D%3D0.78%20m)
The length of a vector arrow represents an magnitude