What type of energy is a spring in a pinball machine before it releases ?

What type of electromagnetic radiation has a shorter wavelength than blue light

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

Astring vibrates with a frequency of 10 hz. why can't a person hear the sound waves produced by the vibrating string, no matter how large the amplitude of the waves? out! this is homework and due tomorrow! you so much!