A tuning fork starts to vibrate when a certain note is played on the piano. this is an example of? A. resonance
B. reflection
C. refraction
D. diffraction

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt

Energy flows from the producer level to the level. is called

When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?