a 50-cm3 block of wood is floating partially submerged in water, and a 50-cm3 block of iron is totally submerged in water. which block has the greater buoyant force on it?

Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

How can waves travel through ground?