Which is the best analogy of a wave? a. a wave is like building a ramp. b. a wave is like shaking a hand. c. a wave is like water rippling in a pond. d. a wave is like knocking down a building.

Starting with only the balmer series light (visible light), how could we ensure that the solar panels generate a current that mark can use for his power station? a)by gradually increasing the brightness (amount) of light that we shine on it. b)by gradually increasing the frequency of the light we shine on it. c)by gradually increasing the wavelength of the light that we shine on it.

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?