In eq. (10.1) in the lab manual, the constant rhoυ is 41.1 gm-cm−2sec−1 in air. a piece of paper has a mass per unit area of approximately 7x10−3gm/cm2. if the frequency is 4.1 khz, what does theory predict for the ratio of the transmitted amplitude to the incident amplitude of the sound wave? (a sound wave is a pressure wave.)

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.