Friday, September 18, 2015

HW for Tuesday

For next class:

1.  Find an equation that relates wavelength, wave speed and frequency.  Use this for the next 2 problems.

2.  Calculate the wavelength of a 440-Hz sound wave (which is concert A), if the speed of sound is 340 m/s.

3.  The speed of light is approx 3 x 10^8 m/s.  What is the frequency of a 0.03-m microwave?

4.  Find definitions for mechanical wave and electromagnetic wave.  

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