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The viscous force within a fluid will depend on the velocity gradient (aka shear rate) within the fluid By integrating this equation over time, one can determine the change in angular velocity, taking into account the initial angular velocity That does not mean that the viscosity is a function of velocity

Viscosity is the ratio between the viscous force and the shear rate Angular acceleration can be expressed as α = dω/dt, leading to the equation dω/dt = τ/i As long as viscous force and shear rate have a linear relationship, viscosity will have a single fixed value.

Since the phase velocity is linear in , , the group velocity is an average of all the phase velocities in the wave pocket

This turns out true in the simplest case which wave pocket contains two waves with wave vectors and. Velocity is fundamentally a vector quantity, possessing both magnitude and direction, while speed is a scalar representing only magnitude In the context of the suvat equations, the symbol 'v' can represent either velocity or speed depending on the notation used Typically, an arrow indicates a vector

The discussion centers on the relationship between the exit velocity of gas and the diameter of a hole in a pressurized container Initially, it was suggested that the exit velocity increases with larger hole diameters based on bernoulli's principle and the continuity equation However, further analysis revealed that the exit velocity is primarily determined by the pressure difference between. Homework statement calculate the final velocity of an object sliding across a surface with a coefficient of friction of 0.2, a distance of 3m, an initial velocity of 50m/s and the object's mass of 100kg

Μ=0.2 v1= 50m/s d=3m m=100kg v2=

Homework equations i know f= μ*normal. Calculating nozzle flow rate to work out the flow rate of water from a nozzle we need to work out the volume in a given period of time To do this we work out the area of the nozzle and then multiply it by the velocity of the water coming from the nozzle to give us volume per unit of time. Though average speed over a finite interval of time is greater or equal to the magnitude of the average velocity, instantaneous speed at an instant is equal to the magnitude of the instantaneous velocity at that instant

This relates to speed, not velocity It is impossible to have a negative speed just as it's impossible to have a negative length or a negative magnitude As to your question, if there's an east/west, then you have to introduce a new axis on your coordinate system and define a positive and a. The calculated initial velocity is approximately 27.586 m/s, which is confirmed as reasonable by other participants

To determine the maximum height, the vertical component of the initial velocity must be considered, and the appropriate.

To find angular velocity (ω) from torque (τ), the relationship τ = iα is used, where i is the moment of inertia and α is angular acceleration

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