Asound that's produced by a single wave at a constant frequency and with no overtones is called
a. a pure sound.
b. a mellow sound.
c. a discordant sound.
d. an average sound.

Standing side by side ,you and a friend step off a bridge at different times and fall for 1.6s to the water below.your friend goes first,and you follow after he has dropped a distance of 2.0m.when your friend hits the water,is the seperation between the two of you 2.0m or more than 2.0m? verify your answer with a calculation.

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?

Does the distance travelled by an oscillating mass between times t=0 and t2 equal the displacement of the particle over the same time period if t2> t/2? hint: consider a sine wave starting at t1=0, then consider a closing wave starting at t1=0, for your explanation.