What is the mass of air in a room meauring 30 cubic meters if the density of air is 1.3kg per cubic meter?
M = 30m^3 * 1.3kg/m^3 = 39 kg.
To find the mass of air in a room, you need to multiply the volume of the room by the density of air.
The volume of the room is given as 30 cubic meters.
The density of air is given as 1.3 kg per cubic meter.
Therefore, to find the mass of air in the room, you multiply the volume (30 cubic meters) by the density (1.3 kg per cubic meter):
Mass = Volume * Density
Mass = 30 cubic meters * 1.3 kg per cubic meter
Mass = 39 kg
Therefore, the mass of air in the room measuring 30 cubic meters, with a density of 1.3 kg per cubic meter, is 39 kg.