Water is a compound because it A. cannot be broken down into simpler substances. B. always has two hydrogen atoms for each oxygen atom. C. is made of water atoms joined together. D. both a and b

A film is coated on the surface of a lens to maximize transmission at λ = 660 nm. If the index of refraction of the film is 1.

If you and a friend are standing at opposites ends of a gymnasium and one of you claps, will the other hear the clap at the same time she sees it happen? If you explain why I'll give your brainliest answer

A vector has an x component of - 27.5 units and a y component of 43.0 units. find the magnitude and direction of this vector.

A soap bubble (n = 1.28) having a wall thickness of 116 nm is floating in air. (a) What is the wavelength of the visible light that is most strongly reflected?

What is the name of the force that is a combination of all forces that act on an object?

If you have a beam perfectly balanced on a fulcrum and put a weight at the very end of one side, is there a way to know where you should put a heavier object on the other end?

Most of the Earth's volcanoes occuWhen fossils or minerals form, certain unstable elements are sometimes locked into them.

a man is standing on the edge of a 20.0m high cliff. he throws a rock vertically with an initial velocity of 10.0m/s. how high does the rock go?

The slope of a velocity time graph over any interval of time gives the during that interval

if light travels in a vacuum at 3.00 x 10^8m/s and its frequency is 7.44 x 10^7 what is its wavelength