Answer:
Explanation:
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In this case, since the density is defined as the degree of compactness of a substance, and is defined as the mass over the volume:
Given the dimensions of the bar of lead, we can compute the volume as shown below:
Thus, the density turns out:
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Answer:
Carbon-14 has a half life of 5730 years. This means it takes 5730 years for half of the carbon-14 atoms to decay to carbon-12 in a given sample (eg: 100 carbon-14, one half life = 50 carbon-14, 50 carbon-12).
Explanation:
Cobalt is a metal thus the atoms are bonded together in giant atomic structures and metallic bonds. The atoms attract each other with very strong atomic forces this the resulting structure is giant atomic structures. This provides for the extra strong structure of cobalt.
Answer: the object is transparent.
Explanation:
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