Question

ezplain the following
a) a baloon collapse when air is removed from it.
b) water does not run out of a dropper unless its rubber bulb is pressed.

Answer 1

(a)because air was there in the balloon which is now removed from it . as we know that air is a matter which occupies space.

(b) water does not run out of a dropper unless its rubber bulb is pressed because atmospheric pressure is greater than the pressure of water.so it needs some force and when force is given by us the water drop came out.