Aglass roof panel, of dimensions 0.75m x 0.65m, in an attic room transmits 90% of the 1. incident visible sunlight, which accounts for about 40% of solar energy, and is opaque to infrared light. on a sunny day, when the incident solar energy is 340 w/m, a person with a basal metabolic rate of 85w is working in the room on a computer that is using 65w. calculate the net ventilation rate required in litres/second if the temperature is to remain constant in the room, assuming: 3ow are lost by heat trans fer through the floor & walls; the energy lost via the ventilated air is 20 k/kg; and air has a density of 1.20 kg/m. give your answer to two decimal places