The measure of density is the air is expressed

Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?

The law of reflection states that the angle of reflection is equal to the angle of

On a mild saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23degreesc. at noon the furnace is turned off, and the people go home. the temperature outside is a constant 16degreesc for the rest of the afternoon. if the time constant for the building is 3 hr, when will the temperature inside the building reach 18degreesc? if some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 18degreesc?