An iron block of density 7.8 g/c.c and volume `50 cm^3` is immersed completely in water. Find loss of weight of iron block in water.

A solid object of volume 250 cm^3 is immersed completely in water. Calculate the buoyant form.

A solid body of volume 60 cm^3 is immersed completely in water. Calculate the buoyant force.

A wire loaded by a weight of density 7.6 g cm^-3 is found to be of length 90 cm. On immersing the weight in water, the length decreased by 0.18 cm. Find the original length of the wire.

A cubical block of iceberg of density rho is floating on the surface of water. Out of its height L, fraction x is submerged in water. The vesel is in an elevator accelerating upward with acceleration a . What is the fraction immersed?

The density of ironis 7.8 g/c.c and that of mercury is 13.6 g/c.c. Therefore, an iron block will float on mercury.

A copper ball of density 8.6 g cm^-3 cm in diameter is immersed in oil of density 0.8 g cm^-3 . If the ball remains suspended in oil in a uniform electric field of intensity 36,000 NC^-1 acting in upward direction, what is the charge on the ball?

An iron pillar consists of a cylindricla portion 2.8 m high and 20 m in diamter and a cone 42 cm. high is surmounting it. Find the weight of the pillar, given that 1cm^3 of iron weights 7.5 g.

A solid iron pole consists of a cylinder of height 220 cm and base diameter 24 cm, which is surmounted by another cylinder of height 60 cm and radius 8 cm. Find the mass of the pole, give that 1 cm^3 of iron has approximately 8g mass. (Use pi = 3.14)