Explore BrainMass

Explore BrainMass

    Einstein Velocity Addition

    The relative velocity of any two objects will never exceed the speed of light. Applying the Lorentz transformation to the velocities, equations are obtained for the relative velocities as seen by the different observers. These equations are called the Einstein velocity addition relationships.

    For example:

    Observer A is at rest, u = velocity of projectile as seen by A
    Observer B is moving, u’ = velocity of projectile as seen by B
    The projectile fired by B is u’.
    If A sees B moving at velocity v, then a velocity measured by B (u’) would be seen by A as:

    Answer:

    u= (v+ u^')/(1+ (vu^')/c^2 )

    The reserve transformation being

    u^'= (u-v)/(1- uv/c^2 )

    These relationships make sense at low speeds where both denominators approach 1.

    © BrainMass Inc. brainmass.com March 29, 2024, 5:35 am ad1c9bdddf

    BrainMass Solutions Available for Instant Download

    quantum

    1. The wavelength spectrum of the radiation energy emitted from a system in thermal equilibrium is observes to have a maximum value which decreases with increasing temperature. Outline briefly the significance of this observation for quantum physics. 2. The “stopping potential” in a photoelectric cell depends only on the f

    Speed of light in a moving medium: Phase velocity of light

    Light moves more slowly through a material medium than through a vacuum, its phase velocity v being c/n, where n is the index of refraction of the medium. If now the medium itself moves at a velocity V << c with respect to the laboratory, show that the phase velocity of the light with respect to the laboratory is approx. c/n