Answer:
Explanation:
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Unlike acceleration and velocity, speed does not need to specify the direction of motion. Speed is a scalar quality.
Friction
As the toy cars rolls away, more friction is created. The more friction there is, the more friction on surface rubs against another which creates friction which in-term slows it down. Hope this helps.
15,000,000 degrees Celsius
After the temperature reaches this degree, nuclear fusion begins to start.
