## Question

A cubical vessel of height 1m is full of water. The work done in pumping water out of the vessel is

### Solution

4900 J

Let* l* be the dimension of each side of the cubical vessel. The of water contained in a height *x* is . Therefore, the work done is

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#### SIMILAR QUESTIONS

Two blocks *A* and *B* are made of different kinds of wood. Block *A* floats in water with of its above the surface water. Block *B* floats in water with of its volume below the surface of water. The ratio of the densities of *A* and *B* is

The pressures inside two soap bubbles are 1.002 and 1.004 atmospheres. Their respective volumes are in the ratio of

If *W* is the amount of work done in blowing a bubble of volume, *V*, what will be the amount of work done to blow a bubble of volume 8 *V*?

Water is flowing through a tube of radius *r* with a speed *v*. If this tube is joined to another tube of radius *r*/2, what is the speed of water in the second tube?

Equal masses of two substances of densities are mixed together. The density of the mixture would be

Equal volumes of two substances of densities are mixed together. The density of the mixture would be

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*V*of the same material and falling in the same fluid will be

A capillary tube of radius *r *is immersed in water and water rises in it to a height *h*. The mass of water in the capillary tube is 5 g. Another capillary tube of radius 2*r* is immersed in water in water. The mass of water that will rise in this tube is