PLEASE HELP ME!! A container with a volume of 3 liters contains a gas at 27oC and 2 atmospheric pressure. This Find the work that gas does during the following operations. a) Its temperature is increased 5 times in constant volume b) From its initial state, its volume is increased to 4 times at constant pressure. c) Volume is doubled from the beginning.

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle