An electric iron is used to remove wrinkles from clothing. the electric iron is made of metal. which property of this substance is most useful for this application?
boiling point
density
electrical conductivity
thermal conductivity

6–48 bananas are to be cooled from 24 to 138c at a rate of 215 kg/h by a refrigeration system. the power input to the refrigerator is 1.4 kw. determine the rate of cooling, in kj/ min, and the cop of the refrigerator. the specific heat of banana above freezing is 3.35 kj/kg·8c.

Which best describes the difference between internal and thermal energy?

Positive ions differ from neutral atoms in that