The frequency of the lowest note on large pipe organs is about 15 HzHz . What is the corresponding wavelength

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

i think the answer is a, hope this : )