How does blowing inside the bottle make the paper ball come out?the air pressure inside the bottle is same as that at its mouththe air pressure inside the bottle is more than the pressure at its mouth.the air pressure inside the bottle is less than that at its mouth.the pressure is same in the bottle and outside it.

The air exerts a pressure on the all sides of the bottle.  a) The bottle is heated. What happens to the pressure inside the bottle? Explain your answer

Air Pressure is...The force air exerts because each individual molecules has so mush wieghtThe force air exerts because its molecules run into thingsThe water pressing on the glass of a bottle

Switch off the fan in a room and hold a paper up vertically as shown.  What happens?  Nothing!  The paper just hangs stationary.  But if the atoms keep pushing the paper like it is shown here, shouldn’t the paper fly up?  Why doesn’t it?Air has low density and so it doesn’t exert much pressure on the paper to make it fly up.The pressure exerted by the paper atoms is more than the pressure exerted by the air atoms.Atoms on the other side of the paper also push equally and so force cancels out.Air atoms are tiny and have very little mass. So even when they hit the paper the force is very low.

Hold a long thin paper with your lower lip on one end of the paper like this and blow hard just above the paper as shown in the figure.  What will happen?

A bottle with a open mouth contains air atººººººººº 47º𝐶. The temperature to which the bottle must be heated so that 1/5th of the mass of air leaves the bottle is