A n y o n e w a n n a t a l k o n g o o g l e d o c s

Trumpeter a holds a b-flat note on the trumpet for a long time. person c is running towards the trumpeter at a constant velocity. person b is running away from the trumpeter at the same rate. person d is standing still the whole time. which person hears a frequency that is lower than the b-flat?

When the magnetic domains in a material can be aligned, but eventually drift out of alignment, the material is

What causes the formation of ocean currents?