The definition of an equilibrium position is: A point on a standing wave that oscillates a lot
A perfectly still point at the bottom of the wave
A point on a standing wave that is at the top of the wave
A point on a standing wave that barely vibrates

The california mussel (mytilus californianus) attaches itself to a rock or other solid surface with a bundle of filaments known as the byssus. imagine that 15.0 j of work is done to stretch the distal end of the byssus. it releases 10.8 j of thermal energy as it relaxes. what is the resilience of the distal end of the byssus?