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3 years ago

6

What do physical changes do?

2 answers:

Citrus2011 [14]3 years ago

6 0

Answer:

D

Explanation:

A physical change is a change like a piece of paper its still paper. But if you burn the paper it turns into ash. A chemical change changes its chemical state.

Cloud [144]3 years ago

3 0

Answer:d

Explanation: I just took the test

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Answer:

$698 \ THz$

Explanation:

Data provided as per the question below:-

Wavelength = 430.nm

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Frequency = Velocity of light ÷ Wavelength

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