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Brums [2.3K]
3 years ago
10

What materials makes up the inner core?

Physics
1 answer:
natita [175]3 years ago
7 0
Answer: mostly out of an alloy created out of iron and nickel, with little bits of platinum, uranium, and gold
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A steel bridge is 1000 m long at -20°C in winter. What is the change in length when the temperature rises to 40°C in summer? The
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Answer:

ΔL = 0.66 m

Explanation:

The change in length on an object due to rise in temperature is given by the following equation of linear thermal expansion:

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