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  1. Derivation of velocity in nth Bohr orbit • Physics Forums

    Mar 17, 2011 · The discussion focuses on deriving the expression for the electron's speed in the nth Bohr orbit, specifically addressing parts (a), (b), and (c) of a homework problem. The key equations …

  2. Why is momentum equal to mass times velocity? - Physics Forums

    Sep 22, 2023 · The discussion revolves around the definition of momentum, specifically why it is expressed as the product of mass and velocity (p = mv) rather than other combinations like mass …

  3. Understanding Zero Velocity and Non-Zero Acceleration: Explained

    Aug 1, 2009 · The discussion centers on the concept of having zero velocity while experiencing non-zero acceleration, exploring various scenarios and interpretations within the context of physics.

  4. How to find the equation for the maximum velocity possible

    Feb 13, 2017 · The problem involves deriving an expression for the maximum velocity of an object moving in a vertical circle attached to a string, specifically focusing on the conditions at the bottom of …

  5. Exit velocity through a nozzle: Bernoulli vs. Experience

    Jun 25, 2023 · The discussion revolves around the exit velocity of fluid through a nozzle, comparing theoretical predictions from Bernoulli's equation with real-world experiences. Participants explore the …

  6. Torque & Power: Understanding Angular Velocity - Physics Forums

    Sep 9, 2008 · The discussion revolves around the relationship between torque, power, and angular velocity, particularly in the context of rotating systems. Participants explore how torque can exist in …

  7. Centrifugal Compressor: Absolute Velocity Calculation

    Jan 28, 2024 · The discussion revolves around calculating the absolute velocity of air at the outlet of a centrifugal compressor, focusing on the relationships between impeller diameter, RPM, and slip …

  8. Escape Velocity Question: Why is the final kinetic energy = 0?

    Dec 13, 2020 · The discussion revolves around the concept of escape velocity, specifically addressing why the final kinetic energy of an object is considered to be zero when it reaches an infinite distance …

  9. (i)A footballer kicks a ball with velocity 60 m / s at an ... - Numerade

    (i)A footballer kicks a ball with velocity 60 m / s at an angle a. For which of the following values of a, the hang-time will be highest? (a) 15^∘ (b) 30^∘ (c…

  10. 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 …