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Harrizon [31]
3 years ago
12

PLEASE HELPPPP THANK YOUUUU!!!

Physics
1 answer:
adoni [48]3 years ago
4 0

Answer:

1: toward the normal

2:away from normal

3: red because the index of refraction ( the ratio of the speed of light in a vacuum to the speed of light in a material) is increased for the slower moving waves

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Different between weight and mass​
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Here easy answer from online

In scientific contexts, mass is the amount of "matter" in an object (though "matter" may be difficult to define), whereas weight is the force exerted on an object by gravity.
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10 hours

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E = h\, f.

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h\, f_{1} = h\, f_{2}.

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