The frequency of the first harmonic of a standing wave on a wire is . The length of the wire and tension in the wire are both doubled.
What is the frequency of the first harmonic as a result?
A f/√2
B f
C √2f
D 2f

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

3. on your graph, the data points between the black squares are data for elements with atomic numbers 3 through 9. locate these elements on your periodic table. what term or description would you use to identify these elements with respect to the periodic table?

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?