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DochEvi [55]
2 years ago
11

PLEASE HELP!!! GIVING BRAINLIEST!! ill also answer questions that you have posted if you answer these correctly!!!! (40pts)

Physics
2 answers:
Artyom0805 [142]2 years ago
7 0
A) Speed..............
Varvara68 [4.7K]2 years ago
7 0

Answer:

Ok

Explanation:

Speed

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A 234.0 g piece of lead is heated to 86.0oC and then dropped into a calorimeter containing 611.0 g of water that initally is at
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Explanation:

Given

mass of lead piece m_l=234 gm\approx 0.234 kg

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Initial temperature of lead piece T_l=24^{\circ}C

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Conserving energy

heat lost by lead=heat gained by water

m_lc_l(T_l-T)=m_wc_w(T-T_w)

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86-T=\frac{0.611\times 4.184\times 1000}{29.391}(T-24)

86-T=86.97T-2087.49

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