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Derive an expression for the height of capillary rise between two parrallel plates dipping in a liquid of density σ separated by a distance d. The surface tension of the liquid is T.
29
Aug
Derive an expression for the height of capillary rise between two parrallel plates dipping in a liquid of density σ separated by a distance d. The surface tension of the liquid is T. Derive an expression for the height of capillary rise between two parrallel plates dipping in a liquid of density σ separated by [...]
With what terminal velocity will an air bubble 0.8mm in diameter rise in a liquid of viscosity 0.15 N/s/m^2 and specific gravity 0.9? Density of air is 1.293 kg/m^3.
29
Aug
With what terminal velocity will an air bubble 0.8mm in diameter rise in a liquid of viscosity 0.15 N/s/m^2 and specific gravity 0.9? Density of air is 1.293 kg/m^3. With what terminal velocity will an air bubble 0.8mm in diameter rise in a liquid of viscosity 0.15 N/s/m^2 and specific gravity 0.9? Density of air [...]
A bead of mass m is fitted on to a rod and can move on it without friction. At the initial moment the bead is in the middle of the rod. The rod moves translationally in a horizontal plane with an acceleration a in a direction forming an angle α with the rod. Find the acceleration of the bead relative to the rod.
29
Aug
A bead of mass m is fitted on to a rod and can move on it without friction. At the initial moment the bead is in the middle of the rod. The rod moves translationally in a horizontal plane with an acceleration a in a direction forming an angle α with the rod. Find the [...]
A small sphere falls from rest in a viscous liquid. Due to friction, heat is prodced. Find the relation between the rate of production of heat and the radius of the sphere at terminal velocity.
29
Aug
A small sphere falls from rest in a viscous liquid. Due to friction, heat is prodced. Find the relation between the rate of production of heat and the radius of the sphere at terminal velocity. A small sphere falls from rest in a viscous liquid. Due to friction heat is prodced. Find the relation between [...]
A bob of mass m=50g is suspended form the ceiling of a trolley by a light inextensible string. If the trolley accelerates horizontally, the string makes an angle theta=37) with the vertical. Find the acceleration of the trolley.
29
Aug
A bob of mass m=50g is suspended form the ceiling of a trolley by a light inextensible string. If the trolley accelerates horizontally, the string makes an angle theta=37) with the vertical. Find the acceleration of the trolley. A bob of mass m=50g is suspended form the ceiling of a trolley by a light inextensible [...]
Spherical particles of pollen are shaken up in water and allowed to settle. The depth of water is 2×10−2m. What is the diameter of the largest particles remaining in suspension one hour later? Density of pollen =1.8×103 kgm^-3 viscosity of water =1×10^−2 poise and density of water =1×10−5 kg m^−3
29
Aug
Spherical particles of pollen are shaken up in water and allowed to settle. The depth of water is 2×10−2m. What is the diameter of the largest particles remaining in suspension one hour later? Density of pollen =1.8×103 kgm^-3 viscosity of water =1×10^−2 poise and density of water =1×10−5 kg m^−3 A powder comprising particle of [...]
A man of mass M stands on a weighing machine in an elevator accelerating upwards with an acceleration a. Draw the free-body diagram of the man as observed by the observer A (stationary on the ground) and observer B (stationary on the elevator). Also, calculate the reading of the weighing machine.
29
Aug
A man of mass M stands on a weighing machine in an elevator accelerating upwards with an acceleration a. Draw the free-body diagram of the man as observed by the observer A (stationary on the ground) and observer B (stationary on the elevator). Also, calculate the reading of the weighing machine. (b) M as viewed [...]
A powder comprising particle of various sizes is stirred up in a vessel filled to a height of 10cm with water. Assuming the paticle to be spherical, find the size of the largest particle that will remain in suspension after 1 h (density of powder =4 g/cm3, viscosity of water =0.01 poise).
29
Aug
A powder comprising particle of various sizes is stirred up in a vessel filled to a height of 10cm with water. Assuming the paticle to be spherical, find the size of the largest particle that will remain in suspension after 1 h (density of powder =4 g/cm3, viscosity of water =0.01 poise). A powder comprising [...]
A rail-road car is moving towards right with acceleration a. A man A accelerating toward left with an acceleration of magnitude a/3 w.r.t. to car. A dog of mass m is following man A with an acceleration a/3 relative to the car. Observing the dog and man A. Find the a. net force experienced by the dog as seen by observer B standing on ground. b. rate of change of linear momentum of the dog relative to the man A moving on trolley. c. pseudo-force on the dog as seen from man A.
29
Aug
A rail-road car is moving towards right with acceleration a. A man A accelerating toward left with an acceleration of magnitude a/3 w.r.t. to car. A dog of mass m is following man A with an acceleration a/3 relative to the car. Observing the dog and man A. Find the a. net force experienced by [...]
Two capillary tubes AB and BC are joined end to end at B, AB is 16 cm long and of diameter 4mm whereas BC is 4cm long and of diameter 2mm. The composite tube is held horizontally with A connected to a vessel of water giving a constant head of 3 cm and C is open to the air. Calculate the pressure difference between B and C.
29
Aug
Two capillary tubes AB and BC are joined end to end at B, AB is 16 cm long and of diameter 4mm whereas BC is 4cm long and of diameter 2mm. The composite tube is held horizontally with A connected to a vessel of water giving a constant head of 3 cm and C is [...]