Mechanical Prop...

Soldering of two metals possible because of the property of

If a block of iron of unknown mass ​​​of size 5 cm × 5 cm × 5 cm was  completely submerged in water, what is the mass of block. (density of water = 1 gm/ cm³)

A boy is carrying a bucket of water in one hand with a 0.05 kg cork piece in it. After sometime he takes out the cork piece and holds it in the other hand. The boy will carry

A beaker is partly filled with water, the beaker and the contents have a mass of 50 gm. A piece of wood having a volume of 5 cc. is floated in the beaker. The density of wood is 0.8 g/cc. the mass of the beaker and its contents is

A bird, resting on the floor of an airtight box, which is being carried by a boy, starts flying. The boy will feel that the box