Three people are installing equipment. cyrus is installing a heating system, aletta is installing a cooling system, and francis is installing a cooling system. which best describes the possible equipment they could install? cyrus is installing an air conditioner, aletta is installing a furnace, and francis is installing a heat engine. cyrus is installing a furnace, aletta is installing a heat pump, and francis is installing an air conditioner. cyrus is installing a heat pump, aletta is installing a thermostat, and francis is installing a furnace. cyrus is installing a thermostat, aletta is installing an air conditioner, and francis is installing a heat engine.

May someone explain how to do this question?

The particles that are found in the nucleus of an atom are

Consider each of the electric- and magnetic-field orientations given next. in each case, what is the direction of propagation of the wave? a)\vec ein the +xdirection,\vec bin the +ydirection. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction b)\vec ein the -y direction,\vec bin the +x choose+ x direction- x direction+ y direction- y direction+ z direction- z direction c)\vec ein the +z direction,\vec bin the -x direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction d)\vec ein the +y direction,\vec bin the -z direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction