Emery powder particles are stirred up in a beaker of water 0.1 m deep. Assuming the particles to be spherical and of all sizes, calculate the radius of the largest particle remaining in suspension after 24 hours. Given that density of emery is` 4000 kg m^(-3)` and coefficient of Viscosity water is 0.001 decapoise.

A powder comprising particle of various sizes is stirred up in a vessel filled to a height of 10 cm with water. Assuming the particle to be spherical, find the size of the largest particle that will remain in suspension after 1h (density of powder =4g//cm^(3) , viscosity of water =0.01 poise).

Spherical particles of pollen are shaken up in water and allowed to settle. The depth of water is 2xx10^(-2)m . What is the diameter of the largest particles remaining in suspension one hour later? Density of pollen =1.8xx10^(3)kgm^(-3) viscosity of water =1xx10^(-2) poise and density of water =1xx10^(-3)kgm^(-3)

The rate of water gushing out of a pipe of radius 5 cm is 100 L m i n^(-1) . The Reynolds number for the flow is of the orderof [density of water = 1000 kg m^(-3) ,coefficient of viscosity of water = 1m Pa s ]

Water from a pipe is coming at a rate of 100 litres per minute. If the radius of the pipe is 5cm , the Reynolds number for the flow is of the order of : (density of water =1000kg//m^(3) , coefficient of viscosity of water =1mPa s )

A drop of water of radius 10^(-5) m is falling through a medium whose density is 1.21 kg m^(-3) and coefficient of Viscosity 1.8xx10^(-4) poise. Find the terminal velocity of the drop.

An air bubble of radius 2.0mm is formed at the bottom of a 3.3m deep river. Calculate the radius of the bubble as it comes to the surface. Atmospheric pressure =1.0xx10^(5)Pa and desnity of water =1000kg m^(-3).

A particle of mass 1 g executes an oscillatory motion on the concave surface of a spherical dish of radius 2m placed on a horizontal plane, Figure . If the motion of the particle begins from a point on the disc at a height of 1 cm. from the horizontal plane and coefficient of friction is 0.01 , find the total distance covered by the particle before coming to rest.

A spherical mercury drop of 10^(-3)m radius is sprayed into million drops of the same size. Calculate the energy used in doing so. Given surface tension of mercury = 0.55 Nm^(-1)

An air bubble of radius 1 mm is located at a depth of 20 cm below water level. The excess pressure inside the bubble above the atmospheric pressure is [Given, the surface tension of water is "0.075 Nm"^(-1) and density is "1000 kg m"^(-3) ]

The wire of a Young's modules appartus is elongated by 2 mm when a brick is suspended from .it When the brick is immersed in water the wire contracts by 0.6mm Calculate the density of the brick given that the density of water is 1000 kg m^(-3)