Question

please solve these numericals.

Answer 1

Answer:

1). As we know, the density of the water is: thus the body will float because the density of the body is less than the water.

2). Since the mass has not sunk in the liquid and floating on the surface, the buoyant will be equal to weight of floating mass.

3). Pressure= dgh

where d= density

g= acceleration due to gravity

h=height of column

height of water column = 5 m

density of water= 1g/ cm^3

get height of Mercury column= h

density of Mercury=

RD×density of water

=13.6×1=

13.6 g/ cm^3

they exerts same pressure or 1×9×5= 13.6× g×h

or 5g = 13.6 h

or h= 5g/13.6g

or h= 0.368 m

height of Mercury required to exerts same pressure is is 0.368m.

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