A 300 kg computer cart accelerates at a rate of 5 m/s^2. What force is required to produce this acceleration?

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

From the question we have

force = 300 × 5

We have the final answer as

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answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.

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