Ad note has a frequency of 587.33 hz. calculate its wavelength in meters.

0.584m

Explanation:

Wavelength is defined as the distance between two successive crest and trough of a wave.

Given that the speed (v) of a wave is the product of the frequency (f) of the wave and its wavelength (¶)

i.e v = f¶ where;

¶ = v/f

Given v = 343m/s (velocity of sound in air which is a constant value)

f = 587.33Hz

¶ = 343/587.33

¶ = 0.584m

The wavelength of the wave in meters is 0.584m

real, smaller and upside-down.   so the answer should be b.

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me