2. What is the frequency of a wave with a velocity of 30,000 m/s and a
wavelength of 15 meters? *
O
450,000 Hz
O
450,000 s
O
2000 Hz
2000 Db

Several mountains together form a mountain . a few of these combined form a mountain system. several systems combined form a mountain , which can stretch thousands of miles in length.

How does an observation about an object differ from an inference about that object

The radius of an atom is closest in size to a