My last exam was given to me ungraded because i think I did so poorly on it. I think i did a good job on the True or False and the Multiple Choices. I think the weak point was in the questions that involved me applying the many subjects i had to learn. but here are section 1 of the questions I "suspect" are wrong: Dogs cool their bodies by sticking out their tongues and panting, which causes saliva in their mouth and respiratory system to evaporate. The normal breathing rate of a dog is about 30 breaths a minute. The respiratory system of a medium-sized dog has a resonance frequency of about 5Hz. A. In breaths per minute, how fast would a dog be breathing if it were to pant at the natural resonance frequency of its respiratory system? My Answer: He would have to breath 5 breaths a second. B. The greater the amplitude of the vibration of the respiratory system, the greater the expanstion and contraction of that system -- which means that more air enters the respiratory tract. Why do you think dogs pant at the resonant frequency of their respiratory systems? My Answer: Theyll cool off more when they go against their natural frequency. Next two questions are on the subject of colors. 1. Childrens's tops are usually multi-colored, made of all the colors of the rainbow, yet when they spin they look white. Why? My Answer: Because when it spins, it joins all the colors in the spectrum making a white appearance (or white light). 2. Many Churches and elegant Victorian houses have stained glass windows, made up of designs with transparent colored glass. What produces the color in the transparent glass? Why are different parts of the window different colors? My Answer:The windows are designed to absorb all the colors of white light, except for a certain color, which comes to be to the set pigment, and this goes for all the other parts of the windows.