ProblemsShow equation, work, final answer with correct units. 1. What is the wavelength of a sound wave with a frequency of 50 Hz? (Speed
of sound is 342 m/s)

2. A sound wave in a steel rail has a frequency of 620 Hz and a wavelength of
10.5 m. What is the speed of sound in steel?

3. Determine the frequency of a microwave 6.0 cm in length. (A microwave is an
electromagnetic wave. It travels through space at a speed of 3.0 x 10^8
m/s

4. What is the period of the microwave in problem 3?