A tuning fork is used to produce sound waves with a frequency of 440 Hz, the tuning reference note. What is the wavelength (in m) of the sound waves when the sound speed is
345 m/s?
A. 0.78
B. 0.92
C. 1.07
D. 1.28
E. 1.46

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.

Gabby calls her cousin who lives in a different state and tells her to turn her radio to channel 98.7 so they can listen to their favorite song that is playing. her cousin turns her radio to 98.7, but does not hear the same song gabby hears. which most likely explains why?

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction