At the equator, the earth spins a distance of
25,922 miles every day; What speed does the
Earth spin at in mph ?

About 1080 miles per hour

Explanation:

If the earth spins 25,922 miles everyday (24 hours) then is would spin about 1080 miles per hour.

25 922 miles / 24

24 divided by 24 to get 1 ( 1 hour)

*if we divided 24 by 24 then we do the same to 25 922 (to make it equivalent)

25 922 divided by 24 = 1080.083333333333.

So, 1080 mph or 1080 miles / 1 hour

I hope this helped :)

diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.