A submersible is surveying the ocean bottom with ultrasonic probing. If the time delay for the sound echo is 5.0 seconds, the depth of the ocean at this point is most nearly a. 857.5 m

b. 1715 m

c. 3700 m

d. 2960 m

Which of the following describes how a microwave heats food

Why should the wavelength scale of spectroscope be calibrated

Aflute player hears four beats per second when she compares her note to a 523 hz tuning fork (the note c). she can match the frequency of the tuning fork by pulling out the “tuning join” to lengthen her flute slightly. what was her initial frequency?