The substance that a wave moves through is called a
a. fluid
c. track
b. medium
d. vibration

You notice a very one-dimensional-thinking snail crawling along one rail of a railroad track. naturally, you remove it to a safer place. but before you do, you observe it as it moves from position xi = -92.9 cm to position xf = -64.9 cm along the rail, as measured from a point where one rail abuts the next. what is the snail\'s displacement δx in centimeters?

Write down two additional questions about earth's magnetic field that will make your presentation more informative.

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?