Lithium was one of the metals studied by the American physicist Robert Millikan in his research on the photoelectric effect. Whe
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The basic relationship between wavelength 
, frequency f and speed c of an electromagnetic wave is
where c is the speed of light. Substituting numbers, we find:
where c is the speed of light. Substituting numbers, we find:
Recall this kinematic equation:
a =
This equation gives the acceleration of the object assuming it IS constant (the velocity changes at a uniform rate).
a is the acceleration.
Vi is the initial velocity.
Vf is the final velocity.
Δt is the amount of elapsed time.
Given values:
Vi = 0 m/s (the car starts at rest).
Vf = 25 m/s.
Δt = 10 s
Substitute the terms in the equation with the given values and solve for a:
a =