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PHYSICS

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Lead has a density of 1.13 104 kg/m3 at 0°C.
(a) What is the density of lead at 86°C?
___kg/m3

(b) Based on your answer to part (a), now consider a situation in which you plan to invest in a gold bar. Would you be better off buying it on a warm day?
Yes or No

Explain.

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