2. Sketch your predictions of the magnetic field lines. 3. Sketch your observations of the magnetic field created by the iron filings. 4. Describe how the actual arrangement of the iron filings (magnetic field lines) compare to your predicted magnetic field lines.

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.