Part 1
A liquid of density ρ and coefficient of viscosity η, flows with velocity υ through a tube of diameter D. A quantity R = ρυD/η determines whether the flow will be streamlined or turbulent. R has the dimension of
16
Sep
A liquid of density ρ and coefficient of viscosity η, flows with velocity υ through a tube of diameter D. A quantity R = ρυD/η determines whether the flow will be streamlined or turbulent. R has the dimension of A liquid of density ρ and coefficient of viscosity η flows with velocity υ through a [...]
A viscous fluid is flowing through a cylindrical tube. The velocity distribution of the fluid is best represented by the diagram
16
Sep
A viscous fluid is flowing through a cylindrical tube. The velocity distribution of the fluid is best represented by the diagram A viscous fluid is flowing through a cylindrical tube. The velocity distribution of the fluid is best represented by the diagram September 16, 2020 Category: Cengage NEET by C.P Singh , Chapter 14 - [...]
When a body falls in air, the resistance of air depends to a great extent on the shape of the body, 3 different shapes are gives. Identify the combination of air resistances which truly represents the physical situation. (the cross sectional areas are the same).
16
Sep
When a body falls in air, the resistance of air depends to a great extent on the shape of the body, 3 different shapes are gives. Identify the combination of air resistances which truly represents the physical situation. (the cross sectional areas are the same). 3 different shapes are gives. Identify the combination of air [...]
A solid sphere moves at a terminal velocity of 20ms^−1 in air at a place where g=9.8 ms^−2. The sphere is taken in a gravity free hall having air at the same pressure and pushed down at a speed of 20ms^−1. Choose the wrong option.
16
Sep
A solid sphere moves at a terminal velocity of 20ms^−1 in air at a place where g=9.8 ms^−2. The sphere is taken in a gravity free hall having air at the same pressure and pushed down at a speed of 20ms^−1. Choose the wrong option. A square plate of 0.1 m side moves parallel to [...]
A solid sphere falls with a terminal velocity of 20ms^−1 in air. If it is allowed to fall in vacuum
16
Sep
A solid sphere falls with a terminal velocity of 20ms^−1 in air. If it is allowed to fall in vacuum A solid sphere falls with a terminal velocity of 20ms^−1 in air. If it is allowed to fall in vacuum September 16, 2020 Category: Cengage NEET by C.P Singh , Chapter 14 - Fluid Mechanics [...]
Eight drops of a liquid of density ρ and each radius a are falling through air with a constant velocity 3. 75cms^−1. when the eight drops coalesce to from a single drop the terminal velocity of the new drop will be.
16
Sep
Eight drops of a liquid of density ρ and each radius a are falling through air with a constant velocity 3. 75cms^−1. when the eight drops coalesce to from a single drop the terminal velocity of the new drop will be. A square plate of 0.1 m side moves parallel to a second plate with [...]
A small spherical ball falling through a viscous medium of negligible density has terminal velocity v. Another ball of the same mass but of radius twice that of the earlier falling through the same viscous medium will have terminal velocity
16
Sep
A small spherical ball falling through a viscous medium of negligible density has terminal velocity v. Another ball of the same mass but of radius twice that of the earlier falling through the same viscous medium will have terminal velocity A square plate of 0.1 m side moves parallel to a second plate with a [...]
A small sphere of mass m is dropped from a great height. After it has fallen 100 m it has attained its terminal velocity and continues to fall at that speed. The work done by air friction against the sphere during the first 100 m of fall is-
16
Sep
A small sphere of mass m is dropped from a great height. After it has fallen 100 m it has attained its terminal velocity and continues to fall at that speed. The work done by air friction against the sphere during the first 100 m of fall is- A square plate of 0.1 m side [...]
If the terminal speed of a sphere of gold (density =19.5kg/m^3) is 0.2m/s in a viscous liquid (density =1.5kg/m^3), find the terminal speed of a sphere of silver (density =10.5kg/m^3) of the same size in the same liquid
16
Sep
If the terminal speed of a sphere of gold (density =19.5kg/m^3) is 0.2m/s in a viscous liquid (density =1.5kg/m^3), find the terminal speed of a sphere of silver (density =10.5kg/m^3) of the same size in the same liquid find the terminal speed of a sphere of silver (density =10.5kg/m^3) of the same size in the [...]
A ball of radius r and density p falls freely under gravity through a distance h before entering water. Velocity of ball does not change even on entering water. If viscosity of water is n, the value of h is given by.
16
Sep
A ball of radius r and density p falls freely under gravity through a distance h before entering water. Velocity of ball does not change even on entering water. If viscosity of water is n, the value of h is given by. A ball of radius r and density p falls freely under gravity through [...]