What happens when some charge is placed on a soap bubble?

If two bubbles of soap of different diameter come in contact with a tube, then what will happen?

Pressure inside a soap bubble is –

When a ship enters a sea from a river, what happens?

An ice cube is floating in a glass of water. What happens to the water level when the ice melts? It –

A piece of ice is floating in a beaker containing water up to its brim. When whole of the ice melts