I need help can someone answer this for me. It says model the force that would cause each velocity change.

How will the system respond to a temperature increase?

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up

How much energy will be transferred to your eardrum while listening to this sound for 1.0 min?