5 kg of fish (Cp =3600 J/KgK) is placed in a storage box that has A=0,45 m2 and k=0,025 W/mK.  The storage box wall is 2 cm. The fish temperature within the box is -1°C when it is packed. a) how much heat goes through the storage box wall if it is forgotten outsite in 20°C b)How long time does it take the fish to get to the same temperature as the surronding.

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