Which of the following has to happen before the eardrum begins to vibrate with the same frequency as the source of the sound waves? a. vibrations have to be transmitted to the fibers of the auditory nerve. b. impulses have to be sent to the brain through the auditory nerve. c. the outer ear has to collect the sound waves and lead them to the middle ear. d. the brain has to interpret the direction from which the sounds are being delivered.

Aregular polygon has angkes of size 150° each.how many side has the polygon

Athin plate moves between two parallel, horizontal, stationary flat surfaces at a constant velocity of v = 7.5 m/s. the two stationary surfaces are spaced 4 cm apart, and the medium between them is filled with oil whose viscosity is 0.9 n·s/m2. the part of the plate immersed in oil at any given time is 2 m long and 0.5 m wide. if the plate moves through the mid-plane between the surfaces, determine the force required to maintain this motion. what would your response be if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top surface (h1)? if the plate moves through the mid-plane between the surfaces, the force required to maintain the motion will be n. if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top (h1) surface, the force required to maintain the motion would be n.

Which one of the following research methods can show cause and effect