PLEASE HELP WITH THIS ONE QUESTION A 50 Ohm resistor is in parallel to a 100 Ohm resistor which is in turn in parallel to a 500 Ohm resistor. What is the total current traveling out of a 10 V battery?

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.