Some signs of a chemical change are a change in color and the formation of bubbles. The five conditions of chemical change: color chage, formation of a precipitate, formation of a gas, odor change, temperature change.
Answer:
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Explanation:
!!! <u><em>Stimulus aka (D)</em></u> !!!
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I think it's <span>a=F/m ; F=m/a=1200 kg x 3.0 m/s^2 = 3600 N</span>
