Out of the choices given, igniting the gas-air mixture supplies the heat for the hot reservoir in a car's engine. The correct answer is C.
Normal force is the force exerted when an object is on an surface. So an example could be a pile of books on top of a table.
C.
Newton’s Second Law is F=ma (force is equal to the mass multiplied by acceleration), however, the equation can be rearranged to isolate and calculate mass from force over acceleration. Therefore, m=F/a
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Because it’s made of metal. And metal is a good conductor
