You would use all of the following except for 3. descriptive categories because, that is a qualitative observation using descriptions and not a quantitative observation using numbers.<span />
Answer:
3 a is the ans i think so ....
The magnetic field or force seems to be associated with the lineup of electrons withim the magnet
Answer: 1.6Hz
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Answer:
Orange , yellow, green and blue
red coat absorbs all colors of visible light except red, so red light
is the only light left to bounce off of the coat toward our eyes.
