Cohesion.
An iceberg sticks out of water like a finger. The majority of its mass is below the water's surface, with only a small portion visible above.
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This is known as the Cohesive Force.
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An iceberg can stick out in the water like a finger. Icebergs are large chunks of floating ice that break off from glaciers or ice shelves and can have unique shapes, some of which resemble fingers.
water exerts two types of force cohesive and adhesive force.Cohesive force exist between water molecules and adhesive force exist between water and other objects.therefore when our hand is dipped in water the adhesive force overtakes the cohesive force and thus water sticks to hand.Its same as the capillarity principle
An example of adhesive force is when water sticks to a surface, such as glass. This occurs because the water molecules are attracted to the molecules on the surface, creating a force that keeps them attached.
Mercury has a high surface tension. NB Don't try it yourself, mercury is very poisonous.
gravity
No work is done as you continuously move your finger up and down the water surface because there is no displacement in the direction of the force applied. Work is only done when a force causes an object to move in the direction of the force.
The force of attraction responsible for the dissolution of an ionic crystal in water is the electrostatic force between the ions in the crystal and the water molecules. Water molecules surround and solvate the ions, causing them to break apart from the crystal lattice and become dispersed in the water.
When you push the paper boat with your finger, your finger applies a force to the boat and transfers energy to it. This energy causes the boat to move forward due to the force applied, propelling it across the water.