In a spectrum of visible light, we will see that red appears to have a longer wavelength than the blue light. Since wavelength and frequency are inversely proportional then, red will have a smaller frequency than does the blue light.
Answer: A.The total number of energy levels the electron can jump to.
Explanation:
Spectral lines are bright or dark lines over continuous spectrum which occur due to emission or absorption of energy.
When an electron jumps to or from one energy level to another energy level, spectral lines are produced. The range of spectral lines depends on the number of energy levels available to which the electron can jump. This depends the amount of energy gained/lost by the electron.
Thus, the correct answer is: A.The total number of energy levels the electron can jump to.
Acceleration = -12 / 8 = - .... m/s^2
Newton’s second law is that the acceleration of an object is directly related to the net force and inversely related to its mass. Acceleration of an object depends on two things, force and mass.
Answer: B. 16 times
Explanation:
The mathematic expression for a magnetic force 
between two magnets is:
(1)
Where:
is a constant
and 
are the magnetic charges, which depends on the size of each magnet
is the distance beteween both magnets
As we can see, this force in inversely proportional to the square of the distance. This means that if we increase the distance, the magnetic force will decrease.
Now, if we increase this value by 4 inches from 1 inch:
(2)
(3)
This means the strength of attraction will be 16 times weaker.
