A wave with a large wavelength will have a frequency and energy.
A. Low, low
B. High, high
C. Low, high
D. High, low

Which statement about sound is not true? a. air particles travel with sound waves. b. sound waves cannot travel through a vacuum. c. sound waves exist even if no one hears them. d. air particles vibrate along the path of a sound wave.

The rules of engagement (roe) working group is often used to (select all that apply.)

What is the main reason why some developing countries fear the increase the free trade policies around the world?