Hi can you me, im really stuck

a) the ear canal can often get blocked with wax. what effect does this have on hearing?

b) what is the eardrum made of ?

c) which part of the inner ear does not play a part in hearing ?
what is its job

Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot