the Reynolds number for the flow is of the order of : (density of water =1000 kg/m^3
Sahay Sir > Question Answers > the Reynolds number for the flow is of the order of : (density of water =1000 kg/m^3
A simple pendulum oscillating in air has period T. The bob of the pendulum is completely immersed in a non-viscous liquid. The density of the liquid is 16/1 th of material of the bob. If the bob is inside liquid all the time, its period of oscillation in this liquid is:
06
Nov
A simple pendulum oscillating in air has period T. The bob of the pendulum is completely immersed in a non-viscous liquid. The density of the liquid is 16/1 th of material of the bob. If the bob is inside liquid all the time, its period of oscillation in this liquid is: coefficient of viscosity of [...]
The displacement of a damped harmonic oscillator is given by x(t) = e^–0.1t cos(10πt + ϕ) Here t is in seconds. The time taken for its amplitude of vibration to drop to half of its initial value is close to
06
Nov
The displacement of a damped harmonic oscillator is given by x(t) = e^–0.1t cos(10πt + ϕ) Here t is in seconds. The time taken for its amplitude of vibration to drop to half of its initial value is close to coefficient of viscosity of water =1 mPas). the Reynolds number for the flow is of [...]
A massless spring (k=800N/m), attached with a mass (500g) is completely immersed in 1 kg of water. The spring is stretched by 2 cm and released so that it starts vibrating. What would be the order of magnitude of the change in the temperature of water when the vibrations stop completely? (Assume that the water container and spring receive negligible heat and specific heat of mass =400 J/kg K, specific heat of water =4184 J/kg K)
06
Nov
A massless spring (k=800N/m), attached with a mass (500g) is completely immersed in 1 kg of water. The spring is stretched by 2 cm and released so that it starts vibrating. What would be the order of magnitude of the change in the temperature of water when the vibrations stop completely? (Assume that the water [...]
A damped harmonic oscillator has a frequency of 5 oscillations per second. The amplitude drops to half its value for every 10 oscillations. The time it will take to drop to 1000/1 of the original amplitude is close to
06
Nov
A damped harmonic oscillator has a frequency of 5 oscillations per second. The amplitude drops to half its value for every 10 oscillations. The time it will take to drop to 1000/1 of the original amplitude is close to coefficient of viscosity of water =1 mPas). the Reynolds number for the flow is of the [...]
Water is flowing continuously from a tap having an internal diameter 8 x 10^−3 m. The water velocity as it leaves the tap is 0.4 m/s . The diameter of the water stream at a distance 2 x 10^−1 m below the tap is close to
06
Nov
Water is flowing continuously from a tap having an internal diameter 8 x 10^−3 m. The water velocity as it leaves the tap is 0.4 m/s . The diameter of the water stream at a distance 2 x 10^−1 m below the tap is close to coefficient of viscosity of water =1 mPas). the Reynolds [...]
A thin liquid film formed between a U-shaped wire and a light slider supports a weight of 1.5×10^−2 N (see figure). The length of the slider is 30cm and its weight negligible. The surface tension of the liquid film is
06
Nov
A thin liquid film formed between a U-shaped wire and a light slider supports a weight of 1.5×10^−2 N (see figure). The length of the slider is 30cm and its weight negligible. The surface tension of the liquid film is coefficient of viscosity of water =1 mPas). the Reynolds number for the flow is of [...]
A liquid of density p is coming out of a hose pipe of radius a with horizontal speed υ and hits a mesh . 50 % of the liquid passes through the mesh unaffected . 25 % comes back with the same speed .The resultant pressure on the mesh will be:
06
Nov
A liquid of density p is coming out of a hose pipe of radius a with horizontal speed υ and hits a mesh . 50 % of the liquid passes through the mesh unaffected . 25 % comes back with the same speed .The resultant pressure on the mesh will be: coefficient of viscosity of [...]
The top of a water tank is open to air and its water level is maintained. It is giving out 0.74 m^3 water per minute through a circular opening of 2 cm radius in its wall. The depth of the centre of the opening from the level of water in the tank is close to :
06
Nov
The top of a water tank is open to air and its water level is maintained. It is giving out 0.74 m^3 water per minute through a circular opening of 2 cm radius in its wall. The depth of the centre of the opening from the level of water in the tank is close to [...]
Water from a tap emerges vertically downwards with an initial speed of 1.0 ms^−1. The cross-sectional area of the tap is 10^−4 m^2. Assume that the pressure is constant throughout the stream of water and that the flow is steady. The cross-sectional area of the stream 0.15 m below the tap would be (g=10ms^−2 )
06
Nov
Water from a tap emerges vertically downwards with an initial speed of 1.0 ms^−1. The cross-sectional area of the tap is 10^−4 m^2. Assume that the pressure is constant throughout the stream of water and that the flow is steady. The cross-sectional area of the stream 0.15 m below the tap would be (g=10ms^−2 ) [...]
A cubical block of side 0.5 m floats on water with 30% of its volume under water. What is the maximum weight that can be put on the block without fully submerging it under water ? (Take density of water = 10^3 kg/m^3 )
06
Nov
A cubical block of side 0.5 m floats on water with 30% of its volume under water. What is the maximum weight that can be put on the block without fully submerging it under water ? (Take density of water = 10^3 kg/m^3 ) coefficient of viscosity of water =1 mPas). the Reynolds number for [...]