The Doppler Formula States That the Ratio of the Velocity

question 38

Short Answer

The Doppler formula states that the ratio of the velocity of a source to the speed of light is equal to the ratio of the change in wavelength caused by the Doppler shift to the source wavelength, or γ/ c  = Δλ/λ. 
A spacecraft has yellow headlights which radiate 600-nm photons, and is travelling toward a stationary observer. If the spacecraft is travelling at a velocity of 1% of the speed of light (0.01 c ) , what will be the amount of the shift in wavelength observed (in nanometers) ?

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Definitions:

Three-Phase Circuit

An electrical distribution system consisting of three alternating currents of the same frequency, which reach their peak values at different times.

Power Factor

The ratio of real power flowing to the load to the apparent power in the circuit, reflecting how effectively electrical power is converted into useful work output.

Apparent Power

The total power in an AC circuit, represented as the product of the circuit's voltage and current, without taking phase difference into account.

Wye-Connected

A method of connecting electrical components where three components are connected at a single point, resembling the letter Y, to balance the load.