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Banked Road and Turning Speed Limits
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Banked Road and Turning Speed Limits

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Questions and Answers

What is responsible for the reduction in the velocity of molecules in the direction of laminar flow?

  • Increase in thermal energy
  • Random directions after collision (correct)
  • Macrosopic kinetic energy
  • Transfer of momentum between layers

    • Why does the interaction between molecules in liquids result in viscous drag?

  • Random directions after collision
  • Increase in thermal energy
  • Stronger intermolecular forces in liquids (correct)
  • Decrease in coefficient of viscosity

    • What does the law for viscous force on a sphere moving through a viscous medium state?

  • Viscous force is inversely proportional to radius and velocity
  • Viscous force is directly proportional to the radius, velocity, and coefficient of viscosity (correct)
  • Viscous force depends on temperature only
  • Viscous force is independent of the medium

    • How is the viscous force equation derived for a spherical object moving through a viscous medium?

    <p>By applying dimensional analysis</p> Signup and view all the answers

    What effect does a change in temperature have on the coefficient of viscosity for most liquids?

    <p>Decreases with increasing temperature</p> Signup and view all the answers

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