A plastic cube is released in water. Will it sink or come to the surface of water ?

A cube floats in water with 1//3^(rd) part outside the surface of water and it floats in a liquid with 3//4^(th) part outside the liquid. Then the density of liquid is

Why can a water spider walk comfortably on the surface of still water ?

A platinum wire ring of radius 2.5 cm floats horizontally on the surface of water. A vertical force of 0.022 N is required to detach the ring from the surface of water. Then surface tension of water is.

Insects are able to run on the surface of water bacause :

Why does a greased razor blade float on the surface of water ?

What is the surface tension of boiling water ?

A needle or a pin floats on the surface of water because of

A glass capillary tube of radius r is placed vertically touching the surface of water. The water rises to height h in capillary tube. If now the tube is dipped into water till only h/2 length of it is outside the water surface the , radius of curvature of the meniscus of water in capillary tube will be,

Give scientific reasons Apencil dipped in water obliquely appears bent at the surface of water.

Solve the following examples / numerical problems: A stone on a bridge on a river falls into the river. If it takes 3 seconds to reach the surface of water, find (i) the velocity of the stone at the instant it touches the surface of water (ii) the height of the bridge from the surface of water.