The difference between speed and velocity is thata) speed is a vector and requires direction. b) speed is a vector and requires a magnitude. c) velocity is a vector and requires a direction. d) velocity is a vector and requires a magnitude.

Matt is driving down 7th street. he drives 150 meters in 18 seconds. assuming he does not speed up or slow down, what is his speed?

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.

Name two kinds of practical electric pumps.