Students create a standing wave with three loops on a slinky 3.75 m
long. They time 20 oscillations in
6.73 s. What is the wavelength of
the standing wave?
(Unit = m)

Explanation:

Given that,

Number of loops are 3

Length of slinky is 3.75 m

They time 20 oscillations in  6.73 s.

We need to find the wavelength of  the standing wave.

For 3 loops,

Here, is the wavelength of the standing wave

So,

So, the wavelength of the standing wave is 2.5 m.

ill do it for 100, also this isnt 80 its 40

thermal energy is the answer