Plz explain your answer

a guitar string has a length of 0.90 m. when you pluck it, it plays a “c” that has a frequency of 256 hz. how fast is the wave moving back and forth along the string?

460.8 m/s

Explanation:

The equation that relates fundamental frequency, wavelength and speed of a standing wave on a string is

where

f is the frequency

v is the speed of the wave

L is the length of the string

in this problem, we have

f = 256 Hz is the frequency

L = 0.90 m is the length of the string

Therefore, re-arranging the equation we can find the speed of the wave:

it will be pushed away from the source of the electric field. a negative charge in a cloud induces a positive charge in the ground below the cloud.

explanation:

the amount of current in the coil