Which statement best describes what happens when a sound source is moving? as the sound source approaches the observer, the pitch decreases and continues to do so as it passes the observer. as the sound approaches the observer, the pitch increases; as it passes the observer, the pitch decreases. as the sound source approaches the observer, the pitch decreases; as it passes the observer, the pitch increases. as the sound source approaches the observer, the pitch increases and continues to do so as it passes the observer.

Follow these directions and answer the questions. 1. set up the ripple tank as in previous investigations. 2. bend the rubber tube to form a "concave mirror" and place in the ripple tank. the water level must be below the top of the hose. 3. generate a few straight pulses with the dowel and observe the reflected waves. do the waves focus (come together) upon reflection? can you locate the place where the waves meet? 4. touch the water surface where the waves converged. what happens to the reflected wave? 5. move your finger twice that distance from the hose (2f = c of c, center of the curvature) and touch the water again. does the image (the reflected wave) appear in the same location (c of c)? you may have to experiment before you find the exact location. sometimes it is hard to visualize with the ripple tank because the waves move so quickly. likewise, it is impossible to "see" light waves because they have such small wavelengths and move at the speed of light. however, both are examples of transverse waves and behave in the same way when a parallel wave fronts hit a curved surface.

Properties seen when one one substance changes to another are known as properties

Forms of meditation hail from which traditions a ) eastern traditions b ) western traditions c ) eastern and western traditions d ) neither eastern nor western traditions