If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 253j of energy to the room? ?

Which feature of a heating curve indicates a change ofn state

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k