The lowest note on a piano is 27.5 Hz. To fit inside the piano,
the string for the low note can't be
longer than 1.20 m. If it takes the
full length, what is the speed of
the wave in the string?
(Unit = m/s)

explanation:

newton's third law, for every action there is an equal and opposite reaction.

so easy. just google the electromagnetic waves and it’ll pop up.

i need with 1.3.2 investigate cycling o2 and co2 apex

we need to see it

answercollision;