The function of the eardrum in the middle ear is to
a. carry the sound energy to the brain.
b. vibrate with the frequency of the received sound.
c. collect the sound waves.
d. amplify the received sound.

The 20@kg wheel has a radius of gyration about its center g of kg = 300 mm. when it is subjected to a couple moment of m = 50 n # m, it rolls without slipping. determine the angular velocity of the wheel after its mass center g has traveled through a distance of sg = 20 m, starting from rest.

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final

What part of the ear is names after tools, such as the hammer and the anvil?