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sort the phrases based on whether they describe reflection or refraction of light.

- passes through a prism
- bounces back from an opaque material
- moves from one medium to another
- bounces back from the boundary of two mediums
- seen in mirrors
- seen in lenses

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to

The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.