37.

1. When a mass on a spring is at equilibrium, the kinetic energy of the mass is at a minimum because?

2. What are the changing forces at work on a mass on a spring?

3. Describe the circumstances in terms of energy and force when speed reaches its maximum and minimum values for a mass on a spring.

4. If a wave has a frequency of f=10⁵Hz and speed v = 20 m/s, what is the wavelength?

5. If a wave has a wavelength of 20m and a speed of 100 m/s, what is the period of the oscillation?