Which statement describes an example of static electricity? O A. When a light switch is flipped, electrons flow to a lightbulb.
O B. Positively and negatively charged particles are attracted to each
other.
O C. Wind turns a generator, causing electrons to flow into power lines.
O D. Electrons move from one end of a copper wire to another.

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.