If frequency is kept constant, how are the velocity and wavelength of a wave related?
A. They are directly proportional to each other.
B. They are inversely proportional to each other.
C. They are not related.
D. They are equal to each other.

The most important difference between a wedge and an inclined plane is a. their size b. their shape c. how they are used d. what they are made of

15. one purpose of the tread pattern on a tire is to a reduce tire wear. b. reduce traction c. allow water to flow away from the tire. d. look impressive.

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.