As the metal expands as does the road bed so neither really effevts those foing over the bridge. as it is hot the metal will expand and so will most tarmac on roads.
Answer:
Convection is heat transfer through the movement of liquids and gases.
It would be option C. It rotates, or spins, on its axis, but it revolves around the sun.
Answer:
No, distance is more important.
20.4 years is 20.4/10.2 = 2 half-life cycles, which means a quarter of the starting mass or 15.2 g will remain after this time.
