01:45
Practical Problem: The Speed of Two Pulleys
A practical problem involving the speeds of two pulleys of different diameters is solved using inverse variation.
01:25
The Ocean as a Sound Channel
Renowned oceanographer and geophysicist Walter Munk talks about differences in the ways sound travels in the ocean as compared to through the air. He observes that the ocean is an ideal medium through which sound can travel.
01:19
Temperature and the Velocity of Sound
Renowned oceanographer and geophysicist Walter Munk talks about the relationship between temperature and the velocity of sound, observing that velocity increases with temperature. Because temperature generally increases anywhere from ten to twenty d...