Question

no spam plz solve it​

Answer 1

see in attachment.

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Answer 2

To solve this problem we use the principle of

Heat lost by one substance = Heat gained by the other

One substance loses heat and cools down to temp t from t¹

Other substance gains heat and heats up to temp t from t²

Therefore, t¹>t>t²

Heat lost by one = m¹s¹∆T¹ = m¹s¹(t¹-t)

Heat gained by other = m²s²∆T² = m²s²(t-t²)

m¹s¹(t¹-t) = m²s²(t-t²)

m¹s¹t¹-m¹s¹t = m²s²t-m²s²t²

m¹s¹t¹+m²s²t = t(m¹s¹+m²s²)

$t = \frac{ {m}^{1} {s}^{1} {t}^{1} + {m}^{2} {s}^{2} {t}^{2} }{m {}^{1} {s}^{1} + {m}^{2} {s}^{2} }$

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