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Some gun fanciers make their own bullets, which involves melting and casting the lead slugs. How much heat transfer is needed to raise the temperature and melt 0.500 kg of lead, starting from $25.0^{\circ} {C} ?$

$Q=3.16 \times 10^{4} \mathrm{J}$

Physics 101 Mechanics

Chapter 14

Heat and Heat Transfer Methods

Thermal Properties of Matter

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Lectures

04:16

In mathematics, a proof is…

04:48

In mathematics, algebra is…

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Some gun fanciers make the…

02:58

A 15-g lead bullet is test…

03:20

A $15-\mathrm{g}$ lead bul…

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ssm It is claimed that if …

07:28

What must the initial spee…

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A 20.0 -g lead bullet leav…

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Lead pellets, each of mass…

04:33

A $3.00-$ g lead bullet at…

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A 3.00 -g lead bullet at $…

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A lead bullet of mass $m$ …

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Two kg of liquid lead init…

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Consult Table 14.4 . (a) H…

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A bullet is accelerated do…

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A 4.2 -g lead bullet movin…

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A rifle has a mass of $4.5…

So there are two processes. Those processes to increase temperature from 25 dissociates to melting points off a leg. So the process is M p B. PBS notation for lead, then CPB times. Let me see the by are melting point off the off the lead, which is 3 27 degrees Celsius minus 25. So simply 25 please. Let's calculate this mass off lead is given as 0.5 specific it off lead is given in textbook page 5 90 as 1 28 So this is 0.5 times 1 28 times 302 So if you have this calculation, he will get 3 19,028 use. This is very small heat compared to what you see for melting. Now melting happens at the constant temperature, so it depends on the latent heat off fusion for let so mass is still 0.5 times. Latent heat is given on page 59 to fall off. The textbook, which is 24.5 kilo Jewish, spur kilograms a 24.5 times 10 power three. Because the value is given in terms of Cuba Jews, we must convert the Jews now, so this valley will be. I thought he went up. So if you add up both the values you get, this values 12,000 2 50 And now let's add up the both values you will get Q one less cute, too. On. Since Cuban is 19,003. 28 you will get 5 31,078 So if you if you round it off to three significant digits, he will get 31.6 kilo, Jules.

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