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what is the equation for wavespeed, wavelength and frequency
v(wavespeed) = f x λ
what is the equation for voltage, current and resistance
V=I x R
what is the equation for current, charge and time
I = Q ÷ t
what is current measured in?
amps
what is the frequency of ultrasound?
> 20,000
what is a wave going left to right called?
transverse wave
what is a wave going forward to backwards called?
longitudinal wave
what is the order of the electromagnetic spectrum?
gamma ray, x ray, ultraviolet, visible light, infrared, microwaves, radio waves