When are the days in the northern hemisphere the shortest?
2 answers:
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Answer:
1.82°C
Explanation:
presumir inicial comprimento = l₀ = 5 m
dado que:
coeficiente de expansão (α) = 22 x 10⁻⁶, A variação no comprimento (ΔL) = 0.0002 m,
inicial comprimento = l₀ = 5 m
variação na temperatura = ΔT
para Calcular a variação na temperatura, nós usamos a fórmula:
substituindo valores:
variação na temperatura = 1.82°C
Explanation:
Let a is the linear acceleration of the descending sphere. It is given by,
.......(1) (change in velocity)
Let is the angular acceleration α of the rotating wheel. It is given by :
............(2) (change in angular velocity)
Dividing equation (1) and (2) we get :
Since,
Hence, this is the required solution.