Answer: London dispersion forces (i.e LDF), also known loosely Van dear Waals forces.
Explanation: The London dispersion forces is named after the German - American physicist called Fritz London.
The London dispersion forces describes the interaction between two atoms A and B after London discovered the "quantum mechanical theory".
London dispersion theory is similar to the quantum mechanical theory of "light dispersion", that is why it is called "dispersion effect". In Physics,dispersion can be explained as the variation of a quantity with frequency, which is the fluctuation of the electrons in the case of the London dispersion.
Answer:
Approximately .
Explanation:
Fact: the angular velocity of a simple harmonic oscillator is the ratio between the maximum velocity and the maximum displacement of this oscillator. In other words:
.
Derivation of the previous equation:
Let denote the amplitude of this oscillation, and let denote the angular velocity.
The displacement of the oscillator at time would be:
.
The maximum displacement of this oscillator would be .
The velocity of this oscillator at time is the derivative of displacement with respect to time:
.
The maximum velocity of this oscillator would be .
Notice that dividing by would give:
.
It is given that while . Therefore:
.
(Radians per second.)
Two would be the answer I believe