As you stand near a railroad track, a train passes by at a speed of 30.3 m/s while sounding its horn at a frequency of 218 Hz. What frequency do you hear as the train approaches you

Which sentences describe point source pollution? in this type of pollution, the source of the pollution is single and easily identifiable. when runoff water from the melting of snow mixes with debris, it creates pollution. the runoff water, mixed with pollutants, reaches large areas with disastrous effects. alternatively, when a wastewater treatment plant releases harmful chemicals into a stream, the chemicals pollute the stream water because they are not treated for safety.

The minute hand of a clock is 7cm long. calculate the displacement and distance covered by it from 8 am to 8.30 am pls answer fast i will surely mark as brainliest fast fast fast

Which wave would cause destructive interference at every point of the wavelength and completely cancel out the wave?