Add together two vectors: the first has a magnitude of 100 cm and is directed east, the other has a magnitude of 50 cm directed at 45° north of east.

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?

In science and physics what is the standard unit of measure for speed?

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.